docs: add Resend DNS-only proxy warning to prevent #515-style verification failures (#1062)

docs: add Resend DNS-only proxy warning to send-mail config

Resend domain verification CNAME records must use DNS-only (gray
cloud) on Cloudflare. Proxied (orange cloud) records prevent
verification, and a single failed attempt can take hours before
retry. This is a recurring issue (#515) that the Resend setup
docs did not warn about.

Co-authored-by: CommandCodeBot <noreply@commandcode.ai>
This commit is contained in:
Chánh Niệm
2026-06-19 15:49:03 +08:00
committed by GitHub
co-authored by CommandCodeBot
parent 41105ed803
commit 7c57592742
2 changed files with 12 additions and 0 deletions
@@ -48,6 +48,12 @@ No additional env var is required.
Register at `https://resend.com/domains` and add DNS records according to the instructions.
> [!WARNING] DNS record proxy status on Cloudflare
> Resend domain verification CNAME records **must be set to DNS-only** (gray cloud) in
> the Cloudflare DNS dashboard. Proxied (orange cloud) records will prevent Resend from
> completing verification, and a single failed attempt can take several hours before
> Retry becomes available. See [#515](https://github.com/dreamhunter2333/cloudflare_temp_email/issues/515).
Create an `api key` on the `API KEYS` page.
Then execute the following command to add `RESEND_TOKEN` to secrets: