Migrating mailman archives to new DH account?


My organization will soon get a Dreamhost account. We want to migrate multiple Mailman mailing lists from our current host to our Dreamhost account keeping the mailing list archive for each mailing list, adding new posts to each mailing list as they arrive. This is the first time I’ve tried to migrate mailing list archives, so bear with me.

Is this something we can do on our own or something we’ll need the admins to help with? I imagine it is the latter, as I recall reading that Dreamhost users don’t have access to the mail spool where archives are kept, but please correct me if this isn’t the case.

What information should I have ready to make this happen (copies of the archives, for instance – are they mbox, MH, or in some other format?)?

Thanks for your help.