SMTP 421 4.4.2 — Stopped SMTP connection
Domain: Email.Priority: Medium
What does this error mean?
The SMTP server temporarily closes the connection or cannot continue the session.
Probable causes
- timeout network
- overloaded service
- connection interrupted
Verification and resolution
- Test Connectivity TT
- Control logs SMTP
- Compare with another network
Precaution: Check the timesouts before changing the TLS settings.
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