We use our MIAB to send and receive mails for a part of our company. As we already use Barracuda Cloud Control to filter incoming Mails for the other part of the company we also want to use it with MIAB.
To start and test some things we have set up an external DNS-Server. Almost everything works fine with it. Except it doesn’t allows us to set TLSA records. So we decided to use the integrated DNS server. But to use Barracuda we have to set the MX records to point to the Barracuda Mailservers.
If i try to add a Custom MX records i get an Error:
Custom DNS (Error)
Internal Server Error
The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.`
The custom MX record is in the Custom DNS records overview but it doesn’t work. It still answers with the original MX record. Is there anything i hae to change that it will work? Or is it not possible at all?