On Thu, 2010-05-27 at 10:17 +0200, Gerhard Waldemair wrote: > Now I have the problem, that I get mail under Mail.app double. (same > header, Message-ID ,...) > > When I use Thudnerbird under MacOS there is all OK.
That doesn't make any sense. Only thing I can think of is that you created two identical accounts to Mail.app.. > Are there some Configs that I need to make for MacOS / Mail.app ? No.
