Cyrus IMAPD 2.1.16 Cyrus SASL 2.1.18
I've been using SASL indirectly through Cyrus IMAP (2.1.16) and I am having intermittent SASL -4 No worthy mechs found errors....IT's totally inconsistent. What I've found is that when it happens SASL has somehow not realised that PLAIN is a plugin available to it, only EXTERNAL comes out of a call to sasl_listmechs()...I can't reproduce this manually, it happens sporadically. But the mechs allowed/available are always passed in the same (PLAIN) and I've verified that the LMTP Server is sending back AUTH PLAIN and that the lmtpengine do_auth code is handing that back to SASL. But SASL never manages to find it's PLAIN plugin so returns -4 occasionally.
I'm sort of at a loss as to how to further debug this and am trying to see if anyone else has seen this? It would be very difficult to make a call to sasl_listmechs and log that for every connection because that would be a huge amount of logs. I'm not even entirely sure where the mechlist gets built, but obviously there is something going occasionally wrong.
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GPG/PGP --> 0xE736BD7E 5144 6A2D 977A 6651 DFBE 1462 E351 88B9 E736 BD7E
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