# Outbox News

> Independent news on email APIs: Resend, Postmark, SendGrid, Mailgun, Amazon SES, AgentMail, Nylas and the rest of the email stack.

Outbox News is an independent newsroom covering email APIs: sending APIs, agent inboxes, mailbox sync APIs, deliverability, testing and notification platforms. Every page below is also available as clean markdown — append `.md` to any URL, or request it with the `Accept: text/markdown` header.

## Articles

- [AgentMail Agents Can Now Sign Themselves Up but Can't Send Alone](https://outboxnews.com/agentmail-agent-signup-without-human-2026.md): AgentMail now lets AI agents sign up with no human email and get a receive-only inbox. Five breaking changes shipped in the same two weeks.
- [Azure Email Retires in 2028 With No Microsoft Option for Customer Mail](https://outboxnews.com/azure-communication-services-email-retirement-2026.md): Microsoft will retire Azure Communication Services Email on Sept. 30, 2028. Its in-house alternative can't send to customers outside a tenant.
- [Cloudflare Stops One Domain's Bounces From Blocking a Whole Account](https://outboxnews.com/cloudflare-email-suppressions-sending-domain-2026.md): Cloudflare Email Service now ties bounce and complaint suppressions to the sending domain that caused them instead of the whole account.
- [ZeptoMail Becomes Zoho CPaaS as Texting and Voice Join Email](https://outboxnews.com/zoho-cpaas-zeptomail-rename-2026.md): Zoho renamed its ZeptoMail transactional email service Zoho CPaaS and added SMS, WhatsApp and voice. Existing email setups keep working unchanged.

## Topics

- [Sending](https://outboxnews.com/tags/sending.md): 2 articles tagged Sending
- [Agent inboxes](https://outboxnews.com/tags/agent-inboxes.md): 1 article tagged Agent inboxes
- [AgentMail](https://outboxnews.com/tags/agentmail.md): 1 article tagged AgentMail
- [Azure Communication Services](https://outboxnews.com/tags/azure-communication-services.md): 1 article tagged Azure Communication Services
- [Cloudflare Email Service](https://outboxnews.com/tags/cloudflare-email-service.md): 1 article tagged Cloudflare Email Service
- [Deliverability](https://outboxnews.com/tags/deliverability.md): 1 article tagged Deliverability
- [Zoho CPaaS](https://outboxnews.com/tags/zoho-cpaas.md): 1 article tagged Zoho CPaaS

## Pages

- [Home](https://outboxnews.com/index.md): Latest coverage from Outbox News
- [Latest](https://outboxnews.com/blog.md): Every story, newest first
- [About](https://outboxnews.com/about.md): About Outbox News
- [Terms of Service](https://outboxnews.com/terms.md): Terms for using outboxnews.com
- [Privacy Policy](https://outboxnews.com/privacy.md): What Outbox News collects