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Send as self not allowed

I have a user that needs to use an alternate domain as his primary send as smtp address. He also needs to be able to use his current default address from time to time. I currently have the alternate domain address set as his default "Reply". When we go in and change the "From" field in Outlook to use the original domain we will receive a rejection with, "You are not allowed to send this message because you are trying to send on behalf of another sender without permission to do so."

Seems pretty odd as the "From" address is the old primary domain that he would normally send from, but since I changed the "Reply" address to the other alternate domain he can no longer send as the old primary.

Old primary: domain1.com
alternate: domain2.com

Current configuration:
Reply: user@domain2.com

can send as user@domain2.com no problem, however can not send as user@domain1.com???

Manpreet SIngh Khatra

Is User@domain1.com the primary address ?
It has to be the primary email address :)

- Rancy

mcetlinski

ASKER

user@domain2.com is the primary address right now. That is the address that we want to default in, which it currently is doing. However, he still needs to be able to send as user@domain1.com from time to time.

ASKER CERTIFIED SOLUTION

Manpreet SIngh Khatra

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mcetlinski

ASKER

So if I have 100 users that need to be able to send as two different domains I have to have 200 users?? Just want to be sure there's no other way. Just turning into a licensing nightmare.

Manpreet SIngh Khatra

Sorry to say but one can send email only using a primary email address and i guess only one can account can have one primary SMTP address.

- Rancy

mcetlinski

ASKER

Correct answer. Just not happy with Microsoft as usual. Thanks.