Anyone Use Mailman?

Hi,

Currently I have a Mysql database with several tables, or lists, or
email addresses.

I basically wrote some perl scripts that use Net::SMTP to send out the
email. I am running Postfix & CentOS. Sometimes I have big issues
with the bounces even though I use perl module Mail::CheckUser.

I have some opt out screens and such, which were required to keep me
off all the blacklists.

Someone suggested to me to run Mailman, as checking for bounces would
be easier, also Net::SMTP is old.

Can I implement a configuration where the lists are still kept within
Mysql and I'm using Postfix while running Mailman? I assume that the
purpose of Mailman is to take the place of all the Perl scripts I have
written?? Correct?

Also, what about the content of the message? Right now I use another
script to read the content and construct the letter and send it
out.......does that change?

Thanks for your time.