[CentOS] sendmail mail relay backscatter issue.
Les Mikesell
lesmikesell at gmail.com
Fri Feb 5 16:19:26 UTC 2010
On 2/5/2010 9:53 AM, Simon Billis wrote:
>
>>> SNIP
>
>>
>> What are you currently using in mailertable to get there? If you use
>> [domain] and go to the A record of the same name it might be a problem
>> - but that might work if you try it. Where I've used it, the delivery
>> hosts had their own names that they'd accept in the envelope and the
>> [IP.address] form would also work.
>
> Currently I have this in the mailertable:
> domain(1).com smtp:smtp2.differentdomain.com
> domain(2).com smtp:smtp2.differentdomain.com
> ...
> Domain(n).com smtp:smtp2.differentdomain.com
>
> I think that I'm going to have to test this out and see what happens.
I think it should work to put the smtp2.differentdomain.com in the
virtusrtable target as long as the destination accepts that as a local
name - and you'd have to go out of your way to avoid it if it is the
real hostname or reverse DNS name for the interface.
--
Les Mikesell
lesmikesell at gmail.com
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