I've had some problems start showing up with users of Thunderbird on Windows sending mail with smtp-auth+TLS. Doesn't seem to affect all mails, possibly just large ones. Started happening yesterday from a couple of different users - I don't see any Thunderbird update at the time though can't rule out a Windows update.
Seen with OpenBSD 6.4 release + syspatches, same after updating to -current. 08:08:16 postfix/submission/smtpd[37109]: connect from unknown[192.168.42.9]:52276 08:08:17 postfix/submission/smtpd[37109]: 45kBdY08W6z74RP: client=unknown[192.168.42.9]:52276, sasl_method=PLAIN, sasl_username=XXX 08:09:37 postfix/submission/smtpd[37109]: warning: TLS library problem: error:06FFF064:digital envelope routines:CRYPTO_internal:bad decrypt:/usr/src/lib/libcrypto/evp/e_aes.c:1507: 08:09:37 postfix/submission/smtpd[37109]: warning: TLS library problem: error:1404C119:SSL routines:ST_OK:decryption failed or bad record mac:/usr/src/lib/libssl/ssl_pkt.c:509: 08:09:37 postfix/submission/smtpd[37109]: lost connection after DATA (253959 bytes) from unknown[192.168.42.9]:52276 08:09:37 postfix/submission/smtpd[37109]: disconnect from unknown[192.168.42.9]:52276 ehlo=2 starttls=1 auth=1 mail=1 rcpt=3 data=0/1 commands=8/9 (local LAN connection so the ~1m20s between connecting and failing is quite a long time..) While I try to figure out a way to reproduce it: - Is anyone else seeing this? - Any suggestions for debug that could be added?
