Hello, what can be achieved with the 'Relay Domain' function? I can't find anything in the manual here.
I'm asking because I can't see the difference between "relay recipients" and "email routing" on the one hand and the 'relay domains' feature on the other hand, at the moment. So you just create a list of allowed domains here?
The server settings for relay domain relay all outgoing emails through the server that you configured there. The Mail > Relay recipients and email routing function is used if you run ISPConfig as a mail filter in front of another server e.g. when you want to filter mauls in front of an exchange server.
This answer meets my request very well. And does the user/domain description in the manual (4.7.3.3) also apply to what we've discussed here? So outgoing mails can be scanned?
I've explained two completely different things and you did not mention which of the two you refer to with your question.
You can control spam filtering for relay domains by adding the domain (or individual email addresses) under Spamfilter User/Domain. Outgoing traffic is scanned too.
If you are familiar with postfix, one configures relay_domains, the other configures transport_maps. They used to be combined in a single interface but that leads to some undesirable configurations without the ability to configure them separately.
