Looking at organising some contacts (new, well controlled) into dynamic DLs.
For future proofing I'd liek to use a single custom attribute and give it a binary value which indicates all the DLs that contact should appear in.
001 = DL1
010 = DL2
011 + DL1 + DL2
100 = DL3
101 = DL3 + DL1
Now I can see how to generate the value (probably not in the exchange shell) by having a use check some boxes and copy and paste into the contact.
How can I write an extensible query for each DL?
Can I write queries with binary ops?