We use a Windows IIS SMTP relay to allow email to get forwarded to our Office365 account.
IIS SMTP listens on port 25 and because we have TLS enabled it requires that the client application send a "START TLS" command after it connects.
The issue is that I cannot sort out how to get osTicket to connect on port 25 and then issue the "START TLS" as the SMTP server is expecting. If I change the port on osTicket to 465 or 587 it will not even connect to the SMTP server so it must stay as port 25 and then osTicket (php) needs to send "START TLS":.
I do hope that this has been solved by someone else ...
We are runing osTicket 1.15.1 with php 7.3
Thanks
