Tugger the SLUGger!SLUG Mailing List Archives

Re: [SLUG]

On Sunday 08 June 2003 03:56, nelsena@xxxxxxxx wrote:
> Hi There,

> relay=c68.115.75.246.euc.wi.charter.com [], reject=553 5.1.8
> nelsena@ Domain of sender address nelsena@
> does not exist

My sendmail admin skills are pretty much non-existent, but I have had a 
similiar problem before. The mail relay is doing a DNS lookup on the domain 
of the sender address, and rejects it if the address cannot be found. This is 
presumably a spam prevention measure. 

In my case, I registered a domain + hostname for the box and everything worked 
fine after that. Note that it's not normal to use an IP address as part of a 
mail addy, I don't know whether the relay would do a reverse DNS lookup in 
this case.


PS: Please use a proper subject line in future when posting.