Good day,
I have the development edition version 5, email on the server works internally and externally perfectly fine. But I require split domain set up for accounts that I cannot host but on the same domain name, only so that users here on site can send to those people who's accounts are not here.
I have tried following this tut
https://wiki.zentyal.org/wiki/Mail_Split_Domain however Zentyal fails to create an external account alias saying that the address is not an external account.
How do you get around this, I believe it's supposed to work?