Oct 22 2018 10:23 AM
Hi,
We have moved all our mailboxes to Office 365. Our MX records point to Office 365. Is there any reason to have the external port 25 open on our in house Hybrid server?
Thanks
Oct 22 2018 10:36 AM
Oct 22 2018 10:45 AM
Just to be clear when you say "running any devices or applications with smtp submission on port 25" you mean external devices or apps, Correct?
That I know of we are not running any.
Thanks
Oct 22 2018 10:48 AM
Oct 22 2018 10:55 AM
Oct 22 2018 11:01 AM
an MFP printer would be internal to our network. I am looking at the old inbound port 25 that email came into.
Oct 22 2018 11:05 AM
SolutionOct 22 2018 11:05 AM
Solution