On 03/08/2017 07:09 PM, Mark Weaver wrote:
On 03/08/2017 06:42 PM, Paul Heinlein wrote:
On Wed, 8 Mar 2017, Mark Weaver wrote:
On 03/08/2017 11:00 AM, Paul Heinlein wrote:
On Wed, 8 Mar 2017, Mark Weaver wrote:
Hello all,
I've been googling my brains out since yesterday looking for up-to-date information on this matter, and have found information that is anywhere from 15 to 5 years old. I'd really like some information that much more up to date on the subject. Specifically configuring Sendmail SMTP authentication (_no smart host stuff_).
I wrote this article years ago:
https://www.madboa.com/geek/sendmail-auth/
The configuration outlined there is essentially unchanged today. I have it running on a CentOS 7 machine with sendmail 8.14.
The only real change is the SOCKETDIR setting in /etc/sysconfig/saslauthd, which is now /run/saslauthd (rather than /var/run/saslauthd). And, of course, I use systemctl rather thachkconfig to control boot-time behavior.
Hi Paul,
I followed your guide to the letter, however I think it seems I missed something. When I test with telnet to port 25 this is the result:
telnet merlin 25
Trying 10.10.3.6... Connected to merlin.ciss.local. Escape character is '^]'. 220 mdw1982.com ESMTP Sendmail 8.14.7/8.13.8; Wed, 8 Mar 2017
16:53:31 -0500
ehlo merlin 250-mdw1982.com Hello [10.10.3.102], pleased to meet you 250-ENHANCEDSTATUSCODES 250-PIPELINING 250-8BITMIME 250-SIZE 250-DSN 250-ETRN 250-DELIVERBY 250 HELP
auth login
504 5.3.3 AUTH mechanism login not available
thoughts?
Many. :-)
Check your mail log for clues.
Ensure you have a valid SSL certificate and key. Sendmail is touchy about permissions on the key file. Try googling for confDONT_BLAME_SENDMAIL and GroupReadableKeyFile.
Make sure saslauthd is configured and running.
Compile your .mc (m4) file with the macros distributed with the version of sendmail you're actually running. This line suggests you're not:
mdw1982.com ESMTP Sendmail 8.14.7/8.13.8
That's a first stab at things to try.
I fixed the version mis-match by installing sendmail-cf package and recompiling sendmail.mc. saslauthd is running and conigured according to your specs. So, I'm not sure what's missing.
Still googling around and found some things that appear to be missing from the sendmail config, but when I test saslauthd it doesn't appear to be working.
testsaslauthd -u username -p mypassword 0: NO "authentication failed"