Pain point · Integrations · Blocks work
Custom SMTP with Office 365 or Outlook times out
1 source thread · first seen 2025-03
Summary
Auth emails fail with a 504 timeout when custom SMTP points at Office 365 or Outlook, though it works with Gmail and with the same credentials from Python.
- Affects
- Teams using Office 365 mail for auth emails
Evidence
Excerpts are copied word for word from the source; follow the link to read it in full.
“Custom SMTP does not work with MS Office 365 or Outlook (smtp.office365.com or smtp.outlook.com)”