[TriLUG] Sendmail help

[Mark Fowle]

Jon -

I'm not running any cisco stuff and my firewall does allow smtp
through -- It doesn't happen all the time, which is the frustrating
part.

Thanks,
Mark


On 09 Sep 2006 20:15:09 -0400, Jon Carnes <jonc at nc.rr.com> wrote:
> Are you running a Cisco Firewall and passing your SMTP into your server
> via that? If so, you may need to tell it to leave your SMTP alone! In
> this case, the firewall cuts off the smtp connection before it can
> complete...
>
> More like though - this may be an indication of spam testing from remote
> mail sites. I think this type of message is indicative of a type of Spam
> testing that some folks run.
>
> A mail server in the act of receiving email from your domain opens a
> smtp connection with your server just to make sure that the domain etc
> are live and correct. It just opens the connection (to verify it), then
> it drops the connection (no nice goodbye or sign off).
> If your server didn't answer then the receiving mail server would reject
> that inbound mail as spam.
>
> Jon
>
> On Fri, 2006-09-08 at 14:13, Mark Fowle wrote:
> > All -  I am starting to get the following error in sendmail:
> >
> > "collect: premature EOM: Connection reset by"  followed by
> >
> > "SYSERR(root): collect: I/O error on connection from"
> >
> > The error isn't consistant, but enough so that I am not getting all my
> > mail -  Is it a time out at my mail server?
> >
> > Thanks,
> > Mark
>
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