On Tue, 17 Jun 2003, Lynn David Newton wrote:

> This morning I just happened to notice that my mail queue was backing up.

You should check your mail logs to see why.

> After a little looking around, I read an email message from Cox sent a
> couple of days ago saying that starting today they were going to "improve"
> service with a filter that would block all email sent to 3rd party outgoing
> SMTP mail servers. Huh??? My mail has always gone out, and as far as I know
> I have been using smtp.west.cox.net, and have no reason not to do so. (Not
> yet, anyhow.) But I suppose I could be wrong. I didn't have to do anything

I am guessing that your sendmail wasn't really sending out via
smtp.west.cox.net.

This was just discussed on this list a few days ago. Several suggestions
were provided. Check the archives for this list.

In one posting (subject of "Re: AOL blocking Cox IPs), Thomas Cameron
showed an example:

   cat /etc/mail/mailertable:

   targetdomain.com        smtp:gateway.hostname.com


Do make all outbound emails to use cox's mail server use something like
the following in your sendmail macro file (and rebuild sendmail.cf):

 define(`SMART_HOST', `smtp.west.cox.net')

Good luck,

   Jeremy C. Reed
   http://bsd.reedmedia.net/