sendmail problems

Giorgos Keramidas keramida at
Fri Oct 19 06:06:01 PDT 2007

On 2007-10-19 00:23, Steve Bertrand <iaccounts at> wrote:
>Duane Winner wrote:
>> Hello,
>> I need help to resolve a problem with my sendmail server.
> Usually when 'sendmail' is in a subject line, one can usually expect
> Giorgos respond :)

Thanks Steve, I'm honored by the confidence :)

I've been having network connectivity issues and fell a lot back in my
email backlog.  I'm back online, with a better setup now, so things will
start improving I guess.

> This is not a Sendmail issue, per-se.

You are right about that.  The original email by Duane Winner said:

    I need help to resolve a problem with my sendmail server.

    In my /var/log/maillog, I've been seeing:

    sm-mta[1753]: l9H4EoAn001753:
    [] did not issue MAIL/EXPN/VRFY/ETRN during connection
    to IPv4

This usually means that there is an incoming connection from the host, whose IP address is, but the
connection was lost before the host managed to issue any commands to
deliver email, query for alias expansion, and so on.

Whenever I've seen this happening, it is usually some sort of network
setup error, broken routing, a misconfigured router in the path between
the originating host ( and Sendmail, or
something similar.

> If we can take this back one step to re-evaluate the entire situation
> it may help:
> - what is the domain you are seeing issues with (are there more than
>   one? If so, are they on the same box/IP?)
> - what IP is this domain's mail operating on
> - examples of domains you see problems with, and examples of those you don't
> - is it only mailing lists you have problems with
> - do you receive this email I am sending on the problematic server
> Do you have another site that you can confirm working/not working?

Good points :)

Duane, can you respond to the questions of Steve above?  They will at
least provide us with hints to start troubleshooting this better.

- Giorgos

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