This is using MDaemon v10.0.5 for mailing. There is a built-in antispam. I'm thinking of deploying a hardware antispam from Sonicwall. I heard from my vendor that unless the built-in antispam is not in use, otherwise, sonicwall antispam won't be about to work with MDaemon. This is because sonicwall is using port 25 to talk to MDaemon's port 25.
So, how to "uninstall" MDaemon's antispam? and get sonicwall antispam work with MDaemon?