Documents the 2026-03-14 incident where MajorAir's public IP was banned by the postfix-sasl jail after repeated SASL auth failures, silently blocking all IMAP connections from Spark Desktop. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Documents the 2026-03-14 incident where MajorAir's public IP was banned by the postfix-sasl jail after repeated SASL auth failures, silently blocking all IMAP connections from Spark Desktop. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>