I'm trying to track down the source of multiple GAL entries. If I were to search the GAL for 'speno' during the process of finding attendees for an appointment, then I would see two entries with the same email address which is confusing at the very least. :-)

Here's some slightly sanitized output from zmprov:

% zmprov sg domain speno

# name id
createTimeStamp: 20080725195309Z
email: speno@isc.upenn.edu
firstName: John
fullName: John Speno
lastName: Speno
modifyTimeStamp: 20100331151546Z
objectClass: organizationalPerson
objectClass: zimbraAccount
objectClass: amavisAccount
zimbraId: whatever 
zimbraMailForwardingAddress: someaddress 

# name id
createTimeStamp: 20100311184023.0Z
email: speno@isc.upenn.edu
fullName: John Spenoe
modifyTimeStamp: 20100311184029.0Z
objectClass: top
objectClass: person
objectClass: organizationalPerson
objectClass: contact

I think the first search result is the Zimbra account itself. What is the second and how would I get rid of it?

We do exchange free-busy info with Exchange, but this issue happens with an account that doesn't have a current Exchange account. The account does have an active directory entry for the purposes of the freeb-busy sharing however. Not sure if that matters.