Certainly before installing Maia

Hello, I am new in this list, and I would like to be able to help in what may as well find some help or advice for all of you. Now, I am trying to implement Maia Mailguard into a mail server with virtual accounts in a CentOS 4.5 with Postfix, Spamassassin and Amavisd-New. My question is this: if Maia install on my mail server, it can affect the configuration currently have on my server and files postfix, and amavis spamassassin?

Greetings, and thanks for the support they give.