> On Apr 15, 2020, at 9:39 PM, Viktor Dukhovni <postfix-us...@dukhovni.org>
> wrote:
>
> On Wed, Apr 15, 2020 at 09:25:29PM -0400, Bobby Mozumder wrote:
>
>> My Postfix SMTP client, when it sends to my external relay server
>> (connecting to port 587), does a core dump and outputs the following message:
>>
>> Apr 15 20:51:57 mail postfix/master[67497]: warning: process
>> /usr/local/libexec/postfix/smtp pid 67505 killed by signal 11
>> Apr 15 20:51:57 mail postfix/master[67497]: warning:
>> /usr/local/libexec/postfix/smtp: bad command startup -- throttling
>
> One of the various debugging options gives you an interactive debugger
> session in a "screen" you can attach to:
>
> http://www.postfix.org/DEBUG_README.html#screen
>
>> Is there a process to debug this? Searching online for this error it
>> looks like it’s mostly for SMTPD, not SMTP. My incoming Postfix SMTPD
>> works fine for receiving mail, using Dovecot SASL. For the SMTP
>> client, I’m connecting to relay with a separate hashed
>> smtp_sasl_password_maps file.
>>
>> It would be nice if I could figure out the command that master is
>> using to start smtp so I can reproduce it manually instead of from
>> master.
>
> That's not possible, but you can attach to the live process.
>
> Most likely you have sort of shared library ABI conflict. Are you
> linking Postfix against non-default variants of shared libraries
> that come with the system?
>
> --
> Viktor.
Thanks. It was a library conflict (LDAP) due to upgrading my FreeBSD install
that didn’t upgrade my Postfix. Had to make clean Postfix again.
-bobby
