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Having another domain relay through our server

Posted on 2006-07-06
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Last Modified: 2010-03-06
Can this be done? I have a construction company on our site, they utilize 1 of our 2 T1's to access there email through pop3/smtp, construction.com that is hosted on a site that just got blaclisted, dumbadministrator.org They can send all email but once on the dumbadministrator.org server it cannot go out. Our firewall and exchange is on the other T1, can i set it up so that their emails that they use our smtp to send email? When i change the smtp settings in outlook from mail.dumbadministrator.org to mail.ourserver.org I recieve an error that the email address is invalid. Is there anything I can do to assist them in sending email without putting them on our domain and giving them accounts?

Please help.
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Question by:jasonskaggs
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Sembee earned 500 total points
ID: 17054466
They need an account to relay through the domain.
You could try and do it with allowing access to their IP address, but I don't advise relay control on IP addresses as those can be spoofed.
You could use a single account for all of them.

What was the reason for getting blacklisted? If they have got blacklisted once, what is to stop them doing the same behaviour again and getting you blacklisted?

Does your ISP not provide an SMTP server they can route their email through?

Simon.
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by:jasonskaggs
ID: 17117696
Our problem was we just wern't waiting long enough for everything to replicate and take effect. Actually it was there ISP that hosts there domain that got blacklisted.
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