Pain point · Reliability & bugs · Blocks work
Hidden preview-text padding triggers spam filters on auth emails
1 source thread · first seen 2026-10
Summary
Invisible-character padding added to authentication email previews triggers rspamd spam rules and delayed delivery by at least one provider. The reported workaround is mounting a patched email template in the worker container.
- Affects
- Self-hosted Appwrite operators using custom SMTP
- Workaround
- Mount a patched `email-base.tpl` into the worker container.
Evidence
Excerpts are copied word for word from the source; follow the link to read it in full.
“In our case, a German hoster (ALL-INKL) held password-reset mails for 10 minutes (`X-Kas-Delay`) before delivering them”