New install of Exch 2010 on SBS 2011.
Users email addresses are in the format of first initial, last name @ domain name, so John Smith is firstname.lastname@example.org
When he sends an email, in the header, I see
On December 16, 2013 at 9:48 AM John Smith <SJohn@domainname.local> wrote:
Why is Exchange creating these odd "From" addresses? They do work, if I reply he gets the email.
(Of course the domain name shown herein is fictional, only for illustrative purposes).