I have another useful information. I could sent to a user in my exchange organisation (the one that was failing before) when NOT using his primary SMTP-address.
I used one of its 2 other smtp adresses (in this case firstcont...@nortiw.de) and it worked. So it looks like this might have something to do with searching in the global addressbook before sending? I also tried with this users 3rd smtp address and it worked fine,too. So what we now now is, that the problem can be limited to the primary smtp address of the user. I also tried "LastName, Firstname" which does not work either. I think it has to to something with the global address book. -- MAPI - can't send mails to addresses on same server https://bugs.launchpad.net/bugs/361993 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs