sendmail and "sender domain must exist" error

[Timothy Stone]

Rodolfo J. Paiz wrote:

> At 07:01 6/17/2004, Timothy Stone wrote:
> 
>> So while our network provider has DNS records for things like www and 
>> the "harrisburgpa.gov" record is out there for querying, but "psyche" 
>> and "mail" are only known internally.
> 
> 
> Quickest and simplest (and most correct) way is to get your network 
> provider to add an A record pointing to your mailserver's IP address, 
> and also an MX record directing mail for that domain to your mailserver. 
> You do have a public IP address for your mail server, right?

I believe that is my problem. This server is not on the public net here.

It's not a matter of having the network provider adding an MX record, I 
can have that done quickly (I'm in charge of that), its that if I add an 
MX record it's not going to point to a mail server, and that is 
something my network admin won't have/allow, if only for her FUD about 
Linux.

While "harrisburgpa.gov" has a public zone file, it does not have an MX 
record or an A record for "mail" or other such name. Only "www" as those 
servers are the only ones exposed on the public net.

So, how do I turn sendmail into a relay for outgoing mail? Or whatever 
that is called. :)

Many thanks,
Tim


> 
> Cheers,
> 
> 


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