{"id":331,"date":"2024-10-02T14:23:22","date_gmt":"2024-10-02T14:23:22","guid":{"rendered":"https:\/\/quickref.me\/blog\/?p=331"},"modified":"2025-10-03T13:56:29","modified_gmt":"2025-10-03T13:56:29","slug":"email-api-how-to-send-emails-for-free","status":"publish","type":"post","link":"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/","title":{"rendered":"Email API: How to Send Emails for Free"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Emails are critical for many modern applications. Whether you need to send account verification emails, transaction receipts, notifications, newsletters or marketing campaigns, being able to send emails through your app programmatically is hugely beneficial.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Fortunately, there are a number of free email API services that make sending emails easy to integrate at no cost up to a large volume of emails. And, if your email stack lives elsewhere, consider a <a href=\"https:\/\/www.dynadot.com\/domain\/transfer\">domain transfer<\/a> to centralize DNS and email management with one registrar before you verify records. In this guide, we\u2019ll cover everything you need to know to get started sending automated emails for free through your software.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">What is an Email API?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">An email API is an Application Programming Interface that allows you to send emails programmatically from within your applications. This allows you to automate email communication instead of sending emails manually.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Most email APIs are web APIs that provide REST endpoints to which you can connect from your application code. You prepare your messages\u2019 data in supported formats like JSON or XML with details like sender, recipients, subject, content and attachments. The email API service will send the emails on your behalf using their email servers.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">This means you don\u2019t have to worry about maintaining email servers, dealing with deliverability issues or provider blocklisting. The provider of <\/span><a href=\"https:\/\/unione.io\/en\/email-api-for-developers\"><span style=\"font-weight: 400;\">email service for developers<\/span><\/a><span style=\"font-weight: 400;\"> handles all of that for you.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Benefits of Using an Email API<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">There are many benefits to using a third-party email API, including:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>No Infrastructure to Manage:<\/b><span style=\"font-weight: 400;\"> Email APIs handle the email servers and infrastructure for you.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Top Deliverability: <\/b><span style=\"font-weight: 400;\">Most email APIs offer great deliverability \u201cout of the box\u201d.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Scalability: <\/b><span style=\"font-weight: 400;\">They can easily scale up to send millions of emails.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Analytics:<\/b><span style=\"font-weight: 400;\"> Many providers include email tracking and analytics.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Spam Compliance:<\/b><span style=\"font-weight: 400;\"> Reputable APIs help you meet anti-spam and security standards.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Easy Integration:<\/b><span style=\"font-weight: 400;\"> Email APIs have simple REST APIs and SDKs for all popular languages and platforms.<\/span><\/li>\n<\/ul>\n<h2><span style=\"font-weight: 400;\">Popular Free Email API Services<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">There are a variety of API services that allow one to <\/span><a href=\"https:\/\/unione.io\/en\/\"><span style=\"font-weight: 400;\">send free email<\/span><\/a><span style=\"font-weight: 400;\"> to explore, with different feature sets and free usage tiers. Here are some of the most popular options:<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\">\n<h3><span style=\"font-weight: 400;\">Unione.io<\/span><\/h3>\n<\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">Unione.io is a user-friendly email API service that focuses on delivering a seamless email experience. Their free tier includes:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">6,000 emails per month<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Up to 500 emails\/day (this limit can be adjusted upon request)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Comprehensive email analytics and tracking<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Real-time event notifications<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Easy integration with various systems via <\/span><a href=\"https:\/\/www.dev4press.com\/plugins\/gd-mail-queue\/articles\/smtp-vs-rest-api\/\"><span style=\"font-weight: 400;\">SMTP and RESTful API<\/span><\/a><\/p>\n<p><span style=\"font-weight: 400;\">Unione.io emphasizes deliverability and provides tools to manage the sender&#8217;s reputation effectively. They offer 24\/7 customer support via email and live chat on their free plans, making them a great choice for developers looking for a straightforward email solution with responsive assistance when needed.<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\">\n<h3><span style=\"font-weight: 400;\">Mailgun<\/span><\/h3>\n<\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">Mailgun is one of the most popular transactional email services, and it is owned by Rackspace. They offer a generous free tier:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">10,000 emails per month<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Up to 300 emails\/hour<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">2-day message history and analytics<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">They offer SMTP\/API integrations for most languages and frameworks, handle spam compliance, have great deliverability and provide detailed email analytics and event tracking.<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\">\n<h3><span style=\"font-weight: 400;\">SendGrid<\/span><\/h3>\n<\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">SendGrid is another leading email service owned by Twilio. Their free tier includes:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">100 emails\/day<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">2-day message history<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Email activity feed with opens, clicks, bounces, etc.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">They also provide client libraries for many languages, tools to improve deliverability and advanced analytics on your emails.<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\">\n<h3><span style=\"font-weight: 400;\">\u00a0Mailjet<\/span><\/h3>\n<\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">Mailjet is a popular European email service focused on transactional and marketing email. Their free tier includes:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">6,000 emails per month<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">200 emails per day<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Unlimited contacts<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Email templates<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Contact management<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Delivery and open statistics<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">They offer real-time event tracking, abuse detection and the ability to detect unsubscribes across various devices.<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\">\n<h3><span style=\"font-weight: 400;\">Elastic Email<\/span><\/h3>\n<\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">Elastic Email has one of the most generous free tiers among transactional email providers:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">150,000 emails per month<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Unlimited contacts<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Send to 50 different recipients per hour<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">View email delivery statuses<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Basic analytical reports<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">They also have easy SMTP\/API integration tools for building email campaigns and protecting the sender&#8217;s reputation.<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\">\n<h3><span style=\"font-weight: 400;\">Amazon SES<\/span><\/h3>\n<\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">Amazon Simple Email Service (SES) is Amazon&#8217;s scalable and highly reliable email service. The free usage tier includes:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">62,000 emails per month for the first 2 months<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Then 1,000 emails per month, ongoing<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">SES also provides excellent deliverability, built-in DKIM support, and email templates and is integrated with other AWS services. However, the free tier is relatively limited.<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\">\n<h3><span style=\"font-weight: 400;\">Mailchimp<\/span><\/h3>\n<\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">Mailchimp is actually a full marketing automation platform but also provides transactional email capabilities with a free tier that includes:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">2,000 emails per month<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Automation for sending multi-email workflows<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Basic analytics on emails<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Easy opt-in management<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">The free tier is focused on newsletter emails rather than transactional. But Mailchimp can still be useful for some application email needs.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">How to Integrate an Email API<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Once you\u2019ve chosen an <\/span><a href=\"https:\/\/cloud.google.com\/appengine\/docs\/legacy\/standard\/go111\/mail\/sending-messages\"><span style=\"font-weight: 400;\">email API service<\/span><\/a><span style=\"font-weight: 400;\">, integration with your application code consists of three main steps:<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">1. Sign Up and Configure Your Account<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">First, you\u2019ll sign up for a free account on whichever API provider you selected. Make sure to confirm your email address and set a strong password.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">In your account, you\u2019ll need to configure the sending (\u201cFrom\u201d) email address and domain. Most providers require verifying the domain ownership.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">You\u2019ll also need to review your account\u2019s spam guidelines and policies to make sure your emails align with recommended best practices around content, consent, unsubscribes, etc.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">2. Install the Client Library<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Nearly all email API providers offer client libraries and SDKs for easy integration with popular programming languages and frameworks.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">For example, Mailgun offers client libraries for Node, Python, PHP, Ruby, C#, Java and Go. The libraries handle lower-level details so you can focus on constructing and sending messages.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Follow the documentation to install the appropriate library for your platform. The library will provide methods to connect to the API and easily construct emails.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">3. Send Test Emails<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Once set up and connected via the library, have your code send some test emails to confirm everything is working. Make sure to check spam folders as well in case messages are incorrectly filtered.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Most email services sandbox accounts until verified, so you\u2019ll need to request production access after confirming functionality.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">With that, you\u2019re ready to start sending automated emails at scale!<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Email API Use Cases<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Here are some common examples of how applications leverage email APIs:<\/span><\/p>\n<p><span style=\"font-weight: 400;\">User Onboarding Emails<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Confirmation for email\/password resets<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Multi-message welcome series<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Transactional Receipts<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Order confirmations<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Shipping &amp; delivery notices<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Billing or payment emails<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">User Notifications<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">New comment\/message notifications<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Alerts when the server is down<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Notification of status changes<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Newsletters<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Periodic digests of new content<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Promotional email campaigns<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Event reminder blasts<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Automated Workflows<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Drip campaigns for free trial users<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Email rating reminders<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Appointment follow-ups<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Monitoring Alerts<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Error, crash or outage alerts<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Threshold warning notifications<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Security intrusion alerts<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">The use cases are nearly endless. Anywhere you need to communicate or notify users, automating emails via APIs is easy and free.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Key Takeaways<\/span><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Email APIs make sending automated emails easy from within your applications<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">There are quite a few excellent free email API options to explore<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Typical use cases include onboarding, transactions, notifications, newsletters and workflows<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Integration consists of configuring an account, installing a code library and testing<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Be sure to follow best practices around email content, consent and frequency<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Leveraging email APIs allows sending critical communications without managing email servers by yourself. This allows small dev teams to build powerful applications with automated messaging at scale.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Hopefully this overview gives you a better understanding of how to start sending automated emails for free!<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Emails are critical for many modern applications. Whether you need to send account verification emails, transaction receipts, notifications, newsletters or marketing campaigns, being able to send emails through your app &hellip; <a href=\"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/\" class=\"more-link\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":157,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-331","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Email API: How to Send Emails for Free - Blog QuickRef<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Email API: How to Send Emails for Free - Blog QuickRef\" \/>\n<meta property=\"og:description\" content=\"Emails are critical for many modern applications. Whether you need to send account verification emails, transaction receipts, notifications, newsletters or marketing campaigns, being able to send emails through your app &hellip; Read More\" \/>\n<meta property=\"og:url\" content=\"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog QuickRef\" \/>\n<meta property=\"article:published_time\" content=\"2024-10-02T14:23:22+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-03T13:56:29+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/quickref.me\/blog\/wp-content\/uploads\/2024\/03\/social2.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"512\" \/>\n\t<meta property=\"og:image:height\" content=\"341\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"tedm\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"tedm\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":[\"Article\",\"BlogPosting\"],\"@id\":\"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/\"},\"author\":{\"name\":\"tedm\",\"@id\":\"https:\/\/quickref.me\/blog\/#\/schema\/person\/781b09d7f4bdae81ce0d191fb1b1d5ec\"},\"headline\":\"Email API: How to Send Emails for Free\",\"datePublished\":\"2024-10-02T14:23:22+00:00\",\"dateModified\":\"2025-10-03T13:56:29+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/\"},\"wordCount\":1250,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/quickref.me\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/quickref.me\/blog\/wp-content\/uploads\/2024\/03\/social2.jpg\",\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/\",\"url\":\"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/\",\"name\":\"Email API: How to Send Emails for Free - Blog QuickRef\",\"isPartOf\":{\"@id\":\"https:\/\/quickref.me\/blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/quickref.me\/blog\/wp-content\/uploads\/2024\/03\/social2.jpg\",\"datePublished\":\"2024-10-02T14:23:22+00:00\",\"dateModified\":\"2025-10-03T13:56:29+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/#primaryimage\",\"url\":\"https:\/\/quickref.me\/blog\/wp-content\/uploads\/2024\/03\/social2.jpg\",\"contentUrl\":\"https:\/\/quickref.me\/blog\/wp-content\/uploads\/2024\/03\/social2.jpg\",\"width\":512,\"height\":341},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/quickref.me\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Email API: How to Send Emails for Free\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/quickref.me\/blog\/#website\",\"url\":\"https:\/\/quickref.me\/blog\/\",\"name\":\"Blog QuickRef\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/quickref.me\/blog\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/quickref.me\/blog\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/quickref.me\/blog\/#organization\",\"name\":\"Blog QuickRef\",\"url\":\"https:\/\/quickref.me\/blog\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/quickref.me\/blog\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/quickref.me\/blog\/wp-content\/uploads\/2023\/10\/cropped-wuickref.png\",\"contentUrl\":\"https:\/\/quickref.me\/blog\/wp-content\/uploads\/2023\/10\/cropped-wuickref.png\",\"width\":236,\"height\":63,\"caption\":\"Blog QuickRef\"},\"image\":{\"@id\":\"https:\/\/quickref.me\/blog\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/quickref.me\/blog\/#\/schema\/person\/781b09d7f4bdae81ce0d191fb1b1d5ec\",\"name\":\"tedm\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/quickref.me\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/2689288940b2c1525bf9633d5f4c4b96d14ab0593b0ec8d5404a1f968810e963?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/2689288940b2c1525bf9633d5f4c4b96d14ab0593b0ec8d5404a1f968810e963?s=96&d=mm&r=g\",\"caption\":\"tedm\"},\"sameAs\":[\"https:\/\/quickref.me\/blog\"],\"url\":\"https:\/\/quickref.me\/blog\/author\/tedm\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Email API: How to Send Emails for Free - Blog QuickRef","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/","og_locale":"en_US","og_type":"article","og_title":"Email API: How to Send Emails for Free - Blog QuickRef","og_description":"Emails are critical for many modern applications. Whether you need to send account verification emails, transaction receipts, notifications, newsletters or marketing campaigns, being able to send emails through your app &hellip; Read More","og_url":"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/","og_site_name":"Blog QuickRef","article_published_time":"2024-10-02T14:23:22+00:00","article_modified_time":"2025-10-03T13:56:29+00:00","og_image":[{"width":512,"height":341,"url":"https:\/\/quickref.me\/blog\/wp-content\/uploads\/2024\/03\/social2.jpg","type":"image\/jpeg"}],"author":"tedm","twitter_card":"summary_large_image","twitter_misc":{"Written by":"tedm","Est. reading time":"6 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":["Article","BlogPosting"],"@id":"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/#article","isPartOf":{"@id":"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/"},"author":{"name":"tedm","@id":"https:\/\/quickref.me\/blog\/#\/schema\/person\/781b09d7f4bdae81ce0d191fb1b1d5ec"},"headline":"Email API: How to Send Emails for Free","datePublished":"2024-10-02T14:23:22+00:00","dateModified":"2025-10-03T13:56:29+00:00","mainEntityOfPage":{"@id":"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/"},"wordCount":1250,"commentCount":0,"publisher":{"@id":"https:\/\/quickref.me\/blog\/#organization"},"image":{"@id":"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/#primaryimage"},"thumbnailUrl":"https:\/\/quickref.me\/blog\/wp-content\/uploads\/2024\/03\/social2.jpg","inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/","url":"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/","name":"Email API: How to Send Emails for Free - Blog QuickRef","isPartOf":{"@id":"https:\/\/quickref.me\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/#primaryimage"},"image":{"@id":"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/#primaryimage"},"thumbnailUrl":"https:\/\/quickref.me\/blog\/wp-content\/uploads\/2024\/03\/social2.jpg","datePublished":"2024-10-02T14:23:22+00:00","dateModified":"2025-10-03T13:56:29+00:00","breadcrumb":{"@id":"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/#primaryimage","url":"https:\/\/quickref.me\/blog\/wp-content\/uploads\/2024\/03\/social2.jpg","contentUrl":"https:\/\/quickref.me\/blog\/wp-content\/uploads\/2024\/03\/social2.jpg","width":512,"height":341},{"@type":"BreadcrumbList","@id":"https:\/\/quickref.me\/blog\/email-api-how-to-send-emails-for-free\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/quickref.me\/blog\/"},{"@type":"ListItem","position":2,"name":"Email API: How to Send Emails for Free"}]},{"@type":"WebSite","@id":"https:\/\/quickref.me\/blog\/#website","url":"https:\/\/quickref.me\/blog\/","name":"Blog QuickRef","description":"","publisher":{"@id":"https:\/\/quickref.me\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/quickref.me\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/quickref.me\/blog\/#organization","name":"Blog QuickRef","url":"https:\/\/quickref.me\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/quickref.me\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/quickref.me\/blog\/wp-content\/uploads\/2023\/10\/cropped-wuickref.png","contentUrl":"https:\/\/quickref.me\/blog\/wp-content\/uploads\/2023\/10\/cropped-wuickref.png","width":236,"height":63,"caption":"Blog QuickRef"},"image":{"@id":"https:\/\/quickref.me\/blog\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/quickref.me\/blog\/#\/schema\/person\/781b09d7f4bdae81ce0d191fb1b1d5ec","name":"tedm","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/quickref.me\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/2689288940b2c1525bf9633d5f4c4b96d14ab0593b0ec8d5404a1f968810e963?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/2689288940b2c1525bf9633d5f4c4b96d14ab0593b0ec8d5404a1f968810e963?s=96&d=mm&r=g","caption":"tedm"},"sameAs":["https:\/\/quickref.me\/blog"],"url":"https:\/\/quickref.me\/blog\/author\/tedm\/"}]}},"_links":{"self":[{"href":"https:\/\/quickref.me\/blog\/wp-json\/wp\/v2\/posts\/331","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/quickref.me\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/quickref.me\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/quickref.me\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/quickref.me\/blog\/wp-json\/wp\/v2\/comments?post=331"}],"version-history":[{"count":2,"href":"https:\/\/quickref.me\/blog\/wp-json\/wp\/v2\/posts\/331\/revisions"}],"predecessor-version":[{"id":636,"href":"https:\/\/quickref.me\/blog\/wp-json\/wp\/v2\/posts\/331\/revisions\/636"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/quickref.me\/blog\/wp-json\/wp\/v2\/media\/157"}],"wp:attachment":[{"href":"https:\/\/quickref.me\/blog\/wp-json\/wp\/v2\/media?parent=331"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/quickref.me\/blog\/wp-json\/wp\/v2\/categories?post=331"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/quickref.me\/blog\/wp-json\/wp\/v2\/tags?post=331"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}