O365 Hybrid

[ITGURU]

I'm setting up a hybrid exchange system and email from the cloud to the local exchange server is working perfectly, however after creating the local sending connector with the domain in , , 365's mail url, when i sent an email from local mailbox to cloud mailbox it's not received and no NDR.

Does anyone have this is place and can check the local exchange server send connector settings and advise what should be selected, and also what firewall ports are required between the local exchange and office 365 for the send connector. I have port 25 open.

 

Thanks.

[ITGURU]

I'm setting up a hybrid exchange system and email from the cloud to the local exchange server is working perfectly, however after creating the local sending connector with the domain in , , 365's mail url, when i sent an email from local mailbox to cloud mailbox it's not received and no NDR.

Does anyone have this is place and can check the local exchange server send connector settings and advise what should be selected, and also what firewall ports are required between the local exchange and office 365 for the send connector. I have port 25 open.

 

Thanks.

 

OK so i've just discovered its not a port issue! When sending emails from local exchange to 365 mailbox all the emails have gone into the JUNK folder!

[techy32]

You found the answer of your issue... Nice...

 

Hybrid exchange system is free for education?

[ITGURU]

You found the answer of your issue... Nice...

 

Hybrid exchange system is free for education?

 

I'm not sure how to whitelist this though as not recommended to white list own domain.

 

Yes o365 is free to edu.

[PyROm]

It is free, Students/Faculty A1 plan (which is free) includes 365 exchange and if you setup an on premises exchange 2016 (not 2019) server and dont store any mailboxes on it (basically acting as a relay) then your exchange 2016 license is free as well (I believe it auto activates when running the hybrid setup wizard).

[chaplic]

Ensure sending IP is in the SPF record.