bug
fixed
Verify cache stuck on stale negative result
bill@transcom.net (Transcom IS) ·
2026-04-18 10:15
Recipient verification returns "user unknown" even after the backend was fixed. Mail keeps getting rejected for ~12 hours before clearing.
Comments (1)
bill@transcom.net (Transcom IS)admin
2026-04-18 10:45
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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