freebsd stable - Feb 2012 - sendmail and smarthost

In 8.3-PRERELEASE, sendmail is now happily ignoring a smarthost unless 
DONT_PROBE_INTERFACES is set.  That used to be unnecessary.

That machine rarely sends email, but a bug followup sent on Feb 25 went 
through.  Maybe not significant since it was outside the local domain.

On Mon, 27 Feb 2012, Warren Block wrote:
> In 8.3-PRERELEASE, sendmail is now happily ignoring a smarthost unless 
> DONT_PROBE_INTERFACES is set.  That used to be unnecessary.
>
> That machine rarely sends email, but a bug followup sent on Feb 25 went 
> through.  Maybe not significant since it was outside the local domain.
Adding an IPv6 entry for the hostname to /etc/hosts prevents the problem 
without requiring DONT_PROBE_INTERFACES.  (Thanks to George Shapiro!)

This brings up the question of why an IPv6 hosts entry is needed on an 
IPv4-only system, but that's for another thread.

On Thu, 1 Mar 2012, Warren Block wrote:
> Adding an IPv6 entry for the hostname to /etc/hosts prevents the problem 
> without requiring DONT_PROBE_INTERFACES.  (Thanks to George Shapiro!)
Make that "Greg", not George.  He now gets to call me
"Wally".