CNAME changes for Googlemail Apps, doesn't really work

[joximu]

@drumlover:
you have to decide if you take googlemail as mail application or use ispCP for it.
Since you send all Mails per DNS MX entry to gmail, ispCP won't see any of them.
If you are sending mails via your ispCP server you have to make sure that postfix does not take them (eg. a mail from a web application which is hosted on your ispCP server is sending a mail to xyz@yfu-rheinland.de: your postfix says: "ok that's my business" and the mail won't go to googlemail.
What I want to point out: it's not that easy yet to use ispcp in the way you want (only a part).
/J