Connection Closed IMAP Exchange Online

followup

I tried connecting my osticket installation to exchange online and i have done all the neccessary steps on azure and checked the ini file and have also ran this command
Set-CASMailbox -Identity (the email address) -ImapEnabled $true
Set-OrganizationConfig -OAuth2ClientProfileEnabled $true

It keeps showing connection closed when trying to enable imap for remote fetch. It accepts the oauth2 settings but wont let me enable, My osticket version is v1.17.5 (7c20036). Thank you for helping. Amazing product by the way.

SMTP works but this cloud account wont work for Imap.

Pls note that it accepted the oauth authentication from azure but on trying to enable, it gives connection closed.

Windows 2019 server

Thanks in advance.

KevinTheJedi

followup

What did you use "other provider" instead of Microsoft? I would reconfigure this entirely with the right OAuth2 provider.
Typically that means the host/port is blocked on your webserver. Look at your server logs for more information. You can also test the host/port via something like telnet on the server's command line.

Cheers.

followup

Thanks for your response KevinTheJedi, i have checked the firewall and the port 993 isnt blocked and i can reach Microsoft when running "Test-NetConnection outlook.office365.com -Port 993"

Also i changed it to oauth-Microsoft and used the details from azure and it still accepts but upon enabling it; it shows "cannot read- connection closed "

I just know the solution would be an easy fix but i just havent figured it out yet. I have also uncomment extension=imap in php.ini

Thanks for your response in advance

KevinTheJedi

followup

I would recommend tailing the outbound connection logs on the webserver when you attempt to save the imap information to see if it attempts a connection and if so what’s going on.

I also noticed you are using v1.17.5 which is no longer supported. You need to upgrade to v1.17.6 and retest. v1.17.6 requires PHP 8.2-8.4 so you will also need to upgrade PHP.

Cheers.