Hi All
So my client is a big company with lets say 300 people.
The database is one serverA and the sage people and relevant services are running on serverB
Mail server details
are smtp.office365.com
587
use ssl enabled
and the username and password is working.
The issue is that when someone puts in leave or any sort of workflow where an email gets sent for approval or notification that email only gets delivered 50% of the time.
Its completely random as to what mails will be delivered and what not.
The error in the database is : Failure sending mail. Unable to read data from the transport connection: net_io_connectionclosed.
We have tried changing the mail server from scheduler to local but that had not effect.
Added a connector in O365 for ServerA and B with no effect.
Disabled Sophos AV on both servers with no effect.
The servers are sitting behind a Fortigate.
Anyone ever seen something like this before?