Do not use any of the following invalid characters in the mailbox ID:

ASCII characters 0-31 Comma ,
Asterisk * Double quote
At sign @
Extended ASCII characters that are graphical or typographical symbols; accented characters in the extended range can be used
Backslash \
Parentheses ( )
Braces { }
Period .
Colon :


Reference: Creating GroupWise Accounts pg 215

so it means we can not create a GroupWise userid as j.smith@mycom.org

I am preparing myself for a migration from MS Exchange to GW8, and currently user's has email addresses like j.smith@mycom.org on MSExchange.

So my question is if period is not supported in GW8 then how can we migrate from MS Exchange into GroupWise8 ?