I am in the process of setting up a mail system with plus addressing.
Presently it is using Dovecot with sieve to filter the mail. What I
want to do is limit the number of "plus" addresses that are accepted.

Example:

Employees: Tom, Joe, Jane

An email to either sa...@example.com or sales+...@example.com should
both be accepted.

However, sales+fr...@example.com should not be accepted.

My question is how to most efficiently implement this sort of setup
within Postfix? Do I need a milter to accomplish this?

-- 
Jerry ✌
postfix-u...@seibercom.net
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