FWIW, we don’t allow our hosting customers to forward emails except in very specific use cases.
Hosting a mailbox that just forwards everything to like a Gmail account will be problematic — especially when your customer’s account is targeted for spam that your system does not flag, but which instead is forwarded on to a Gmail account. If one of our customers wants a copy of the emails on our system sent to their Gmail account, we advise them to set up their Gmail account to fetch such emails from our system instead. Hope that helps, Mark ___________________________ L. Mark Stone Mission Critical Email LLC > On Jan 6, 2025, at 5:51 PM, Kris Deugau via mailop <mailop@mailop.org> wrote: > > I'm gearing up to replace parts of our ISP mail infrastructure, and I'm > looking at deploying new hosts on new IPs for both regular outbound mail and > forwarded mail. I wasn't all that close to the action with the last round, > which was done by just replacing systems in place on the same IPs and copying > queued mail to the new systems. > > I've been doing some searching, which out to the tenth page of search results > has almost exclusively turned up references around marketing mail sent by a > monolithic organization, not general ISP traffic. The few links that weren't > exclusively targeted to marketing mail were pretty heavily slanted that way. > > I've recently finished a tour of the last ~decade in the list archives, but I > didn't see many relevant threads. Those also mostly devolved into the same > more or less irrelevant advice around "click rates" and "engagement", which > mean nothing when what we send (or relay) is at most someone else's marketing > mail that we're passing on to a final destination by request of our customer. > > Does anyone have any suggestions beyond the obvious "start with low volume, > ramp up over $timeperiod"? What kind of $timeperiod? What kinds of volumes? > I don't have detailed, fine-grained controls over what goes where, but I can > set the load balancer to weight a new node much less than the live nodes and > increment it over time. > > Daily volume varies quite a bit; for regular outbound, ~~15k messages/day on > weekends, anywhere from 35k to just over 100k on weekdays, although most days > are on the lower end of that range. Forwarded mail - ie, received by either > an ISP-domain mailbox or a hosted domain mailbox/alias and forwarded > elsewhere (usually GMail or Outlook.com) runs about 2/3 of that. > > -kgd > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://list.mailop.org/listinfo/mailop _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
