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and beside of that, if you are saying that your not using it but are blacklisted. I would be worried Postfix is light so don't worry about the resource savements.
you could always try rpm -e postfix --nodeps and see what happens. It may cause some problems with other items since other apps may expect a MTA to be present.
you could always try rpm -e postfix --nodeps and see what happens. It may cause some problems with other items since other apps may expect a MTA to be present.