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MadCow
Honorable But Hopeless Addict

Canada
1493 Posts
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Posted - 07/26/2010 :  09:59:21 AM  Show Profile  Reply with Quote

I want to allow another domain on the internet to send on behalf of our domain. So if they send out an email it appears that it came from our domain.

I know that they will have to add our domain on their mail server and then we will have to add their IP as MX in our DNS – Is there anything else we need to do in our DNS or they need to do in their DNS? Is this the correct approach, I never done this before???

Advise please.

Thank you

Sunny
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"Everyone is susceptible to the notion that when you begin to do well, you begin to see no boundary lines and forget the rules apply" - Eliot Spitzer

cj_berlin
Honorable But Hopeless Addict

Germany
3173 Posts
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Posted - 07/26/2010 :  11:06:33 AM  Show Profile  Visit cj_berlin's Homepage  Look at the Skype address for cj_berlin  Reply with Quote
I wouldn't add their IP as MX as this could cause your mail to go to them in case of a network outage at your site.

But what you'd need to do in your DNS is modify your SPF record.

On a side thought: Is it possible/feasible/doable to have them send through your Exchange? This way you can document/track/archive what they send on your behalf.

My 2 Ct.
Evgenij Smirnov
MISSION CRITICAL Business IT Services Ltd.

Revolutionising the PC desktop at a fixed rate (in German only):
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MadCow
Honorable But Hopeless Addict

Canada
1493 Posts
Status: offline
Posted - 07/26/2010 :  12:03:26 PM  Show Profile  Reply with Quote
Thanks Evgenij..

I don't think I have set up any SPF in my DNS.

How can I let them relay through my mail server??? Are there are pitfalls if their server gets spammed and we get hit by that too???

The issue here is that what we want is that even if they send on our behalf we want the receipient to see that email came from ourdomain.com and not theirdomain.com

Advise Please.

Sunny
__________________________________________________________________________


"Everyone is susceptible to the notion that when you begin to do well, you begin to see no boundary lines and forget the rules apply" - Eliot Spitzer
Edited by - MadCow on 07/26/2010 12:04:01 PM
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