Wietse Venema via Postfix-users:
> John Doe via Postfix-users:
> > postfix/master[2399665]: warning: process
> > /app/PFXpostfix/postfix/usr/libexec/postfix/tlsproxy pid 2399702 killed by
> > signal 11
> > 
> > And it's deferring email to next hop :(
> 
> # postconf 'smtp_tls_connection_reuse = no'
> # postfix reload
> 
> This is an old problem, and I'll look for the patch that fixes this.

This is not the problem that I had in mind, and there are no
tlsproxy problems patched in postfix-3.8.* or later. 

For the sake of provenance, I will assume that your Postfix versions
were built by RedHat, and that RedHat's Postfix version matches the
Postfix versions that I have released.

I found postfix-3.8.5-8.el10.src.rpm on www.rpmfind.net. Would that
match the installed postfix-3.8.5 on your system? The RedHat patches
don't appear to affect Postfix TLS behavior.

You wrote that the old rhel7 server runs Postfix 3.3.6. That version
did not implement smtp_tls_connection_reuse. It was introduced with
Postfix 3.4 and is still disabled by default. Is there a problem
that requires smtp_tls_connection_reuse support?

I think that I will have to defer this to Viktor. Postfix programs
shuold not segfault with any input or configuration, but it can
take some effort to reproduce this independenty.

        Wietse
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