Hello everyone,
we want to upgrade our osTicket from 1.15.6 (on a Windows Server) to the latest 1.17.2 (on Ubuntu 22.04).
Everything is working fine except for IMAP settings.
On the old 1.15.6, once we added our email settings (hostname, port number 993, IMAP + SSL and authentication credentials) when a new message arrive in our inbox automatically a new ticket is opened.
With the 1.17.2 we got error using the same informations/credentials we used with the former version.
I guess we don't need to use OAuth2 since we are connecting to our Exchange 2016 server on premise, but if we insert port 993, Protocol IMAP, Basic Authentication (legacy) and then insert DOMAIN\username and password we got the error:
error = fsockopen(): Unable to connect to ssl://mail.richiedei.it:993 (Unknown error) (errno = 0 )
All the php modules needed are installed.
While the Outgoing SMTP is working flawlessy (on port 25 with no authentication required because we will send email only to domain users).
I don't know how to solve this issue. Has someone succeded to setup IMAP with exchange on premise and osTicket ver 1.17.2?
Thanks alot and happy holidays to everyone.
Diego
