I´ve an e-mail address with a "." before the "@". For example

If I use Outlook 2007 / 2003 it is not possible to send an e-mail. I
got the Error Code 0x800CCC81.
Using another Mail-Address - all works fine.

I think the problem is, that this Mail-Address ist not RFC compliant -
Outlook doesn´t accept this sender.
Exist a posibility to disable the RFC compliant checking?

Many thank

Stephan