[mdlug] Email configuration problem

[Dave Arbogast]

If this is the case, be sure to get AT&T to setup your reverse DNS for 
your email server's IP address - you will have to have the forward DNS 
for this IP address setup already or they will not do the reverse. This 
will keep many of your messages from being blocked as "residential" 
(Bot-ed WIN spammer).

-dave

Robert Adkins wrote:

>Do they host their own internal Email server or do they access one outside
>of their building via an outside webhost?
>
>We utilize AT&T Business DSL, we host our own internal email server with all
>incoming/outgoing email on our own equipment. The business service includes
>5 outside IP Addresses that are on permanent lease to our account.
>
>The solution to the problem you describe depends upon how they send/receive
>email.
>
>If it is an inhouse email server, I would take a look at their router,
>assuming that their inhouse email server worked fine with their previous
>ISP.
>
>If it is an outside server, then they are probably being blocked somewhere
>in AT&T's network, probably as a measure to combat spam, if they are setup
>with a dynamic "residential" class DSL. Which means a lengthy telephone
>conversation with AT&T's Level 1 support people, before being pushed to
>Level 2 for another lengthy conversation before possibly being given a
>number to their network routing team for another lengthy conversation that
>should provide some resolution. 
>
>	-Rob
>
>
>  
>
>>-----Original Message-----
>>From: mdlug-bounces at mdlug.org 
>>[mailto:mdlug-bounces at mdlug.org] On Behalf Of Duane Brown
>>Sent: Thursday, February 07, 2008 10:41 PM
>>To: mug - discuss; MDLUG's main mailing list
>>Subject: [mdlug] Email configuration problem
>>
>>My niece works for a company that is having problems with 
>>their outbound business email. They need some help getting it 
>>straightened out. I believe it is directly related to a 
>>change in their ISP to AT&T DSL.
>>
>>They can receive email fine but when they send they get an 
>>error something like "communications error on port 25".
>>
>>I am assuming this is configuration issue (showing my lack of 
>>knowledge in this area). This is a mixed Apple and MS 
>>environment with less than a handful of machines. I'm 
>>guessing they have a Cable/DSL router so they can share the 
>>connection.
>>
>>I think they are north east of Detroit, like the St Clair Shores area.
>>
>>If you're interested in helping them out, email me and I'll 
>>forward your information to my niece.
>>
>>I could probably muddle my way through it but I'd rather put 
>>them in touch with someone who can get this fixed with out 
>>wasting their time.
>>
>>Duane
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>>mdlug mailing list
>>mdlug at mdlug.org
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>>    
>>
>
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