[pls]

I'm doing a mail merge with three lines of address:

Mergefield 1: Name
Mergefield 2: AddrLine
Mergefield 3: CityStZip

If the student's address line in field 2 is "Union Mailbox XXX", I need to
suppress line 3.

If they have on off-campus address, then line 3 needs to print.

Based on an earlier response to a different question, I put on line 3:
{IF "{MERGEFIELD AddrLine\*Union}"''{MERGEFIELD CityStZip}"}
This works to suppress line 3 for those whose address begins with "Union"
but it's also suppressing line 3 for all others.

What am I doing wrong? Thanks!