Emails failing in applications after migrating to the cloud

Contributor

After we migrated from exchange on-prem to the cloud, emails being sent from applications we developed are failing.  Can anyone point me in the right direction of what to look at or change?

 

Thanks

1 Reply
You haven't provided enough information about your setup to advice anything. We have used a relay this way https://docs.microsoft.com/en-us/Exchange/mail-flow-best-practices/how-to-configure-iis-for-relay-wi... so it is an internal server, all applications send emails to it and it securely relays them through EO. But it looks like there are already a few options to do a some what direct sending now (a few years later) https://docs.microsoft.com/en-us/Exchange/mail-flow-best-practices/how-to-set-up-a-multifunction-dev...