On Tue, May 12, 2020 at 07:31:02PM -0700, Alexander Vasarab wrote: > I wish I could offer an interpretation, but I'm ignorant to the arcana > that's on full display in this log.
> May 12 19:04:06 vasaconsulting postfix/smtpd[3301]: > <data scrubbed>[<data > scrubbed>]: 250 2.1.5 Ok > May 12 19:04:06 vasaconsulting postfix/smtpd[3301]: watchdog_pat: > 0x5571a55eaa60 > May 12 19:04:06 vasaconsulting postfix/smtpd[3301]: vstream_fflush_some: fd > 17 flush 14 There's a 14-byte write to fd 17 consisting of "250 2.1.5 Ok\r\n", and then: > May 12 19:04:06 vasaconsulting postfix/smtpd[3301]: warning: TLS library > problem: error:140E0197:SSL routines:SSL_shutdown:shutdown while in > init:../ssl/ssl_lib.c:2086: > May 12 19:04:06 vasaconsulting postfix/smtpd[3301]: smtp_get: EOF > ...match_hostname/addr stuff... Once again out of the blue, a lost connection. The SMTP server is trying to read the next command after sending "RCPT TO" and encounters an EOF condition, for no apparent reason. At this point, I'd guess your SSL library is broken... -- Viktor.