On Aug 24, 10:52am, j...@sdf.org (j...@sdf.org) wrote: -- Subject: Re: libsaslc TLS postfix client woes
| Switching to previous openssl libraries will take some doing but I think I've | uncovered more clues using the posttls-finger(1) tool: | | % posttls-finger -a ipv4 -L verbose -l encrypt -cS '[smtp.acme.com]:submission' | posttls-finger: initializing the client-side TLS engine | posttls-finger: LHLO rejected: 502 unimplemented (#5.5.1) | ^^^^ | | Should be "EHLO" right? Looks like a simple typo in the code somewhere. Hunting | around with strings(1) I found this: | | % strings /usr/libexec/postfix/smtp | grep LHLO | performing the LHLO handshake | LHLO %s | | Does that look like the likely suspect? Possibly, see: https://en.wikipedia.org/wiki/Local_Mail_Transfer_Protocol Maybe switching back to an older version of postfix fixes it then? christos