Current setup is multi server debian jessie with SOGo for webmail/calendar and about 300 users. Considering moving to G Suite for email and keeping ISPC for web and dns. First, is there a how to? I searched but looking for "g" is tough. Second, what would we lose? We use email alias and forward lists in ISPC right now. Should I assume that all users will be created in g Suite and I won't have any users setup in ISPC? Will I lose alias and forward lists capability? When I setup users, how will I xfer their existing gigs of emails into G Suite? Anything I'm not thinking of? Any guidance is appreciated.