ms access - SQL merge two tables then remove entries based on a third list -


we have 2 mailing lists need combine, ,

  1. make sure there no duplicates and
  2. compare against 3rd list (the unsubscribe list) , remove names on list.

i've tried 

select distinct *    [table1.emailaddress table1 union          select table2.emailaddress table2]. [email];

which works fine 1st problem. tried add 

where not exist (select table3.emailaddress table3)

to select query, no avail...
we're using access 2000 ( no won't upgrade);
tables have other fields, none of match other tables.
emailaddress fields have non matching cases... 

select distinct email (     select email     table1     union     select email     table2 )x not exists(     select * table3 t3 t3.email=x.email )

if have case sensitive db lower() email columns.


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