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End of Life Notice - Cloudflare Workers

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Since launching our free email sending API for Cloudflare Workers customers, we have been proud to provide a simple yet effective solution to deliver messages from Workers code with a minimum of setup complexity. Unfortunately, we regret to announce that this free service will be coming to an end on June 30th, 2024.

What's next?

Cloudflare customers utilizing the free MailChannels email API have until 5:00 PM Pacific Daylight Savings Time (UTC-7) on June 30th, 2024 to transition to an alternative email delivery solution. After that date, the API endpoint will begin rejecting connections from unauthorized senders. As soon as June 1st, 2024, we will begin failing a small fraction of API requests and including a link to this article in the error message.

As a gesture of goodwill and to provide continuity for your email needs, we welcome all current Cloudflare Workers customers to contact our sales team to discuss transitioning to a paid MailChannels account.

Watch this space

MailChannels plans to launch a more capable email delivery API in the future, complete with delivery tracking features, DKIM-key hosting, generative-AI delivery optimization, and more. We hope you'll join us when it launches.


We understand this change may be disruptive to you and we sincerely apologize for any inconvenience. Thank you for your understanding and for the opportunity to serve your email delivery needs for the past two years.

The MailChannels Team

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