We have a Znuny 6.5.3 installation that has been working fine for years. On Monday, we stopped receiving mail. We have exhausted all options but cannot figure out what is the issue. It is an email account with Oauth2 on Office 365. No changes were made.
1. We have restarted the server;
2. We have restored an earlier version;
3. We checked that the mail account is working properly;
4. We removed all items from Inbox to ensure no email was causing issues;
5. We have tried to debug the server;
6. We have changed internet connection for the server;
7. We used telnet to try identify if there are connectivity issues;
8. I'm sure we tried even more things.
All of this with no luck and cannot find any other ways to troubleshoot. A debug from console just results in the below:
Code: Select all
[otrs@otrs-srv01 ~]$ ./bin/otrs.Console.pl Maint::PostMaster::MailAccountFetch --debug --force-pid
Spawning child process to fetch incoming messages from mail accounts...
outlook.office365.com (IMAPTLS)...
Error: Timeout of 600 seconds reached, killing child process!
Done.
[otrs@otrs-srv01 ~]$