I am trying to find the best solution to filter multiple records from a contact list either by using a portal or prefreably a list.
I have 2 tables, Contacts and Mailing List. As I add contacts to the mailing list I would like to have them filtered from the contacts lists. For example, if I have 10 contacts and add "Joe Smith" to the mailing list I would only be able to see 9 contacts list in the Contacts list or portal. The purpose of this is to speed up adding contacts by removing already added contacts and to also assist with avoiding duplicates in the mailing list.