- Used Zammad version: 5.1.1
- Used Zammad installation type: ( apt install zammad …)
- Operating system: Ubuntu 20.04.4
- Browser + version: Chrome
i have a Problem with the configuration of the Inbound Mails. I configured as outbound SMTP my Firewall and as inbound IMAP Server our Exchange Server 2019.
Same configuration in OTRS and it works. I installed zammad and configure it there but it dont.
Can somebody tell me a step by step to configure it?
The Errors are: Server Unavailable. 15 but ports are opened and firewall packets going threw to the exchange