Verify cache stuck on stale negative result
Recipient verification returns "user unknown" even after the backend was fixed. Mail keeps getting rejected for ~12 hours before clearing.
Recipient verification returns "user unknown" even after the backend was fixed. Mail keeps getting rejected for ~12 hours before clearing.
1 comment
Manual cache flush: rm /var/lib/postfix/verify_cache* and reload postfix. Default cache TTL was too long for our dev cycle.
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