A third party system creates an eDir account, generates a unique email
address and writes it into 'Internet Email Address' attribut similar to
'firstname.lastname012@domainname.com

Using the GroupWise driver, I need to create a mailbox based on the
'Internet Email Address' information.

How can I extract 'firstname.lastname' portion from the 'Internet Email
Address' and place that in the Groupwise Prefferred Email address as I
create the mailbox

or
How can extract 'firstname' and 'lastname' to use them in GroupWise 'Given
Name' and 'Surname' to create the mailbox.

Thanks for assistance