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  1. Providers
  2. ›Cloudflare
  3. ›Email Service
  4. ›Update

Preview•Jul 17, 2026

Preview sent emails in the Activity log

Email ServiceCloudflare · Developer platform

You can now preview the content of sent emails directly from the Email Service Activity log. Expand a sent email and open the new Preview section to inspect the message as it was sent, across tabs for the rendered HTML body, the Text body, the Headers, the Attachments, and the full Raw RFC 5322 source.

Previously, the Activity log surfaced delivery and authentication metadata but not the message content, making rendering and content issues harder to debug. Message preview closes that gap.

To make messages previewable, turn on Email preview in your sending domain's settings. Previews cover messages sent while the setting is turned on and are retained for about seven days. Sending domains onboarded on or after 2026-07-02 have Email preview turned on automatically.

Refer to Email logs for more information.

Read the original announcement↗

More from Email Service

All Email Service updates →

  1. Suppress recipients for one sending domain

    Email Sending suppressions now have a scope:

    Email Service•Feature•Sep 25, 2026

  2. Manage Email Routing rules with Wrangler

    You can now manage Email Routing rules that route emails to Workers from your Wrangler configuration. Add literal addresses or a catch-all address to the top-level addresses field:

    Email Service•Feature•Sep 4, 2026

  3. Subscribe to Email Sending events with Queues

    You can now subscribe to Email Sending events through Queues event subscriptions and receive outbound transactional email lifecycle events on a queue.

    Email Service•Feature•Jul 15, 2026

  4. Authenticated SMTP submission now available in beta

    You can now send emails through Cloudflare Email Service using authenticated SMTP submission on smtp.mx.cloudflare.net:465.

    Email Service•Preview•Jun 8, 2026

  5. Send emails with named recipient addresses

    You can now send emails with display names on recipient addresses in addition to the existing from support. Pass an object with email and an optional name field for to, cc, bcc, replyTo, or from:

    Email Service•Feature•May 28, 2026