sendmail problems

[Derek Ragona]

At 06:15 PM 10/17/2007, Duane Winner wrote:
>Derek Ragona wrote:
> > At 04:07 PM 10/17/2007, Duane Winner wrote:
> >> Hello,
> >>
> >> I need help to resolve a problem with my sendmail server.
> >>
> >> In my /var/log/maillog, I've been seeing:
> >>
> >> sm-mta[1753]: l9H4EoAn001753: outbound-mail-10.bluehost.com
> >> [69.89.17.210] did not issue MAIL/EXPN/VRFY/ETRN during connection to
> >> IPv4
> >>
> >> I use this server to manage mailman lists, so I knew something was wrong
> >> when I started notice that my own list posts (using a bluehost.com
> >> account) were not showing up.
> >> So I looked in the logs and noticed the above.
> >>
> >> At first I thought it might be bluehost.com acting up again, but then
> >> tried to send mail from a gmail.com account. Same thing:
> >>
> >> sm-mta[1785]: l9H4OdFq001785: py-out-1112.google.com [64.233.166.176]
> >> did not issue MAIL/EXPN/VRFY/ETRN during connection to IPv4
> >>
> >>
> >> It accepts fine from my company's external email server (different
> >> domain, different network), and also accepts from my att.net email
> >> account, and many others who post to my lists.
> >>
> >> I'm not sure where to even begin looking. Any help appreciated!
> >>
> >> -DW
> >
> > Are you running only IPv4?  or are you running IPv6?  Or both?
>
>IPv4 only. When I restart sendmail, I get the following output, which if
>I'm interpreting correctly, means that sendmail isn't going to try to
>use IPv6 when it's running:
>
>Oct 17 19:13:23 mymailserver sm-mta[33703]: starting daemon (8.13.6):
>SMTP+queueing at 00:30:00
>Oct 17 19:13:23 mymailserver sm-mta[33703]: NOQUEUE: SYSERR(root):
>opendaemonsocket: daemon IPv6: can't create server SMTP socket: Protocol
>not supported
>Oct 17 19:13:23 mymailserver sm-mta[33703]: NOQUEUE: SYSERR(root):
>opendaemonsocket: daemon IPv6: optional socket disabled
>Oct 17 19:13:23 mymailserver sm-msp-queue[33707]: starting daemon
>(8.13.6): queueing at 00:30:00

It looks like you are trying to run sendmail on IPv6.  You can turn on or 
off support for IPv6 in the DaemonPortOptions in your *.cf files in 
/etc/mail.  I would check those and also check your IP stack configuration 
doing:
ifconfig -a

         -Derek

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