https://bitpage.me/tags/dkim/Recent content in Dkim on BitPageHugoen-usThu, 06 Aug 2026 07:08:22 +0000https://bitpage.me/incidents/gmail-bounces-everything-spf-dkim-fcrdns/Thu, 06 Aug 2026 07:08:22 +0000https://bitpage.me/incidents/gmail-bounces-everything-spf-dkim-fcrdns/Short answer: Three independent mechanisms were broken at once, and fixing any one of them changed nothing visible. The domain had no v=spf1 record (only a dead SenderID one), the PTR resolved forward to a different server, and OpenDKIM was signing nothing because KeyTable and SigningTable were attached as refile: while their contents were in plain two-column format. That last one cost the most time: when OpenDKIM can’t find a key it logs absolutely nothing, so the daemon reads active, the config parses, the key is readable, and mail still leaves unsigned.