Exchange 2010 relay to O365

russgrimmett
russgrimmett used Ask the Experts™
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Hi all.

I migrated over to office 365 this year with no troubles apart from a few copiers not having the ability to use TLS to connect to 365 to scan to email.

I have exchange 2010 doing nothing on one server and was hoping to relay out to an account on 365 for the copiers... But it is becoming a pain

Anyone managed to do this?
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Amit Kumar
Top Expert 2015

Commented:
Just to  make sure your Exchange server (Hub Transport server) is natted with a public IP with opening inbound 25 (SMTP) port. You can allow only public IP in O365.
russgrimmett

Author

Commented:
Yes, that's correct...
Amit Kumar
Top Expert 2015

Commented:
So your send connector should send e-mail to O365 then. Check your send connector should be marked as Smart host and DNS for Smart host will be O365 MX record which is for your domain.

Share any error if you have in queue viewer.
russgrimmett

Author

Commented:
I may need to double check this tomorrow... I managed a successful connection to the server on port 25 but the message got lost and disappeared...
Top Expert 2015
Commented:
check Tracking on O365 as well if there are incoming connections.

also check Mail tracking on Exchange server if mail is going to correct host.

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