relocating mail server

Hi, I'd like to setup my debian box to do mail server after I mirrored the potato and installation. I'd like to know how to forward all the emails from my current email server to this new potato box? Here is the current setup: ISP < email > current mail server(hamm)

potato mirror

Hi, I'm in the middle of mirroring the potato distribution and notice that there are about 300+ packages symlink to slink distribution. Does this mean that I need to mirror slink also? Thanks! --- tcp