Update:Rebooting the server seems to have fixed the GAL "Add to Outlook" action.  However, many of the email address in the Outlook SharePoint list contain personal email addresses rather their domain email addresses.  I initially suspected that these users might have entered their personal email addresses in "My Settings>Account Settings>Reply-To Email Address" or "Backup Email Address" but all of the ones I looked at these fields either blank or in the case "Reply-To Email Address" had their domain email address.  Nor for that matter was their personal email address to be found anywhere in the "Account Settings" or "Account Profile settings. 

 

Looking at the ones with personal email addresses I'm guessing that they used their personal email address when setting up their smart phones. 

 

Surely, this is a bug no?

I really would be helpful if someone from SmarterTools could at least comment on whether of not this behavior is by design or is a bug.  I really can't imagine any circumstances where I'd need or want someone's personal email address if I'm creating a SharePoint list of the contacts in the GAL.

Six days later and still no comments from SmarterTools--pretty disappointing.  So what next; Open a support ticket?  Seems pretty silly.

It should sync the domain email address as well as any other email addresses they list in "My Settings -> Account Profile".

I tested this and it synced correctly.  If you are not seeing the domain email address then there may be a bug.  Since I can't reproduce any issue you would need to open a support ticket for us to figure out why you are seeing different behavior.