How to determine FAS from BZ email?

[Garrett Holmstrom]

On 2012-02-23 10:20, John5342 wrote:
> It is possible that they don't match but they are more or less
> required to though. Last i checked the bugzilla "editbugs" permissions
> and the like are set from fas by email address so if the addresses
> don't match up then the user won't be able to manage bugzilla properly
> anyway.

Even that may not be true, as the infrastructure team has mapped FAS 
accounts to Bugzilla accounts with different e-mail addresses in the past.