Stephen Daniel writes:
Currently I am running a small web site and a modest mailman3 implementation in Google's cloud for less than $25/month, including the cost of the Google Workspace account that lets me use their SMTP relay. Any suggestions on more reliable ways of implementing mailman3 that do not dramatically expand the budget are most welcome.
More reliable I can't speak to yet, it's only been about 2 months, but I'm running Mailman, webserver, Cyrus imapd, and the MTA system (including spamfiltering, DKIM and ARC signing, etc) on a Linode, with just the addresses that Linode provides. So far, very easy. I got banned by IP from the get-go by O365, which automatically unbanned me in a very simple procedure (seriously, I expected MSFT to be a *much* bigger PITA). Then I had to disable outgoing SMTP over IPv6 because Spamhaus. (Long story short: they refuse to talk to you about your IPv6 addresses unless you own at least a /64 network.)
Less than $15/month but very low traffic, both mail and web.
-- GNU Mailman consultant (installation, migration, customization) Sirius Open Source https://www.siriusopensource.com/ Software systems consulting in Europe, North America, and Japan