Once upon a time, Frank Bures <bur...@gmail.com> said:
> mtr --tcp -P 587 -4 smtp.gmail.com
> 
> works OK.
> 
> mtr --tcp -P 587 -6 smtp.gmail.com
> 
> returns:
> 
> mtr: udp socket connect failed: Network is unreachable

So you've flipped from v4 not working to v6 not working?  Do you have
working IPv6 for other services?  Are you forcing sendmail to use IPv6
for this, or just letting it use what works?

This sounds like either a local network issue or possibly a problem with
your service provider.
-- 
Chris Adams <li...@cmadams.net>
-- 
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