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Re: Strange Exim errors



On Sat, Feb 24, 2007 at 01:07:47PM -0500, Leonid Grinberg wrote:
> Hello,
> 
> I recently set up a mail server in my home network as an experiment.
> We have a dynamic IP given to us by Comcast, but I registered with
> DynDNS for a DNS name, and told my router to update it when the IP
> changed. The idea was that one could send an email to
> username@dyndns_address, and it would get there (where username is my
> username and dyndns_address is my DynDNS URL).
> 
> The setup was successful, and I can both send and receive emails.
> However, I am starting to get strange emails that say something like
> this:
> 
> Message [CENSOR] has been frozen.
> The sender is [CENSOR]@sitestream.net
> 
> The following address(es) have yet to be delivered:
>  [CENSOR]@westerncom.net: Connection timed out
>  [CENSOR]@uniteq.com: Connection refused
>  [CENSOR]@animalhouse.com: lowest numbered MX record points to local host
> 
> I did not send any of these emails. The three emails that were not
> delivered have the username all the same. The sitestream one is
> different.

do any of these mails show up in your mail server logs? 

> 
> I assume that this is somehow using my machine as a relay, though I
> have absolutely no idea. I am very much of a n00b when it comes to
> mail.

You can control who you relay for and you should almost certainly have this
set so that you do no relaying for anyone. 

what MTA are you using?

A

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