Email Forwarding

[goombawaho]

Ok, I hope this is a question to which a DNS change is the answer. I have two domains - DomainA.com and DomainZ.com

DomainZ forwards to DomainA for HTTP and it works just fine (if you type in

http://www.domainZ.com,

the address shows up as

http://www.domaina.com).

No problem with http traffic.

However, I want the same thing to happen with e-mail without mail going into a DomainZ account and then forwarding from that mail to domainA. If you send to user@domainA.com - it sends email as expected. If you try to send to user@domainZ.com, the following error pops up:

smtp error 553 relaying denied


Both domains are registered through GoDaddy, but the details of an NSLOOKUP are different. Any help on this appreciated.

DomainA
MX preference = 10, mail exchanger = mx01.1and1.com
MX preference = 10, mail exchanger = mx00.1and1.com

DomainZ
MX preference = 10, mail exchanger = mailstore1.secureserver.net

MX preference = 0, mail exchanger = smtp.secureserver.net

 

[elgrandeperro]

The MX records controls which MTAs are contacted to route your mail.

Obviously, you can have the mail go this way:

DomainZ
MX preference = 10, mail exchanger = mx01.1and1.com
MX preference = 10, mail exchanger = mx00.1and1.com

But the MTA must be setup to allow to accept mail for DomainZ, or it will look like a email relay attempt.

 

[goombawaho]

So, first we'd change the MX Records for DomainZ and then since the mail server is hosted at 1and1.com, we would have to contact them to get them to allow mail from DomainZ to flow into the mail host at DomainA.

Do I have that right now?

 

[elgrandeperro]

Yes.

As a former corporate mail admin, I configure my servers to accept the mail and remap appropriately on a multitude for mail domains.

I see 1and1 is a mail hosting site, they should have the ability to merge the mail domains.

eugene

 

[goombawaho]

Thanks very much. I used to do mail admin and make some DNS changes, but it's been a while and my brain just couldn't zero in on those memories.