I am surprised that people here still have this all-or-nothing approach when it comes to managed vs self-hosted e-mail despite it being covered countless times.

I am surprised that people here still have this all-or-nothing approach when it comes to managed vs self-hosted e-mail despite it being covered countless times. If what you mention does turn out to be an issue, or you decide it's a worthwhile tradeoff to not have to care about IP reputation, you can choose to route all or a subset (depending on destination domain) of your outgoing mail through a provider like mailroute/mailgun/sendgrid/fastmail/posteo. Or even gmail/AWS. You can still self-host the rest even if you don't want to hother with outgoing SMTP, which you can always add later should uou choose to. > If you stay on top of all the best-practices for running your own mail server, your hidden cost is the mind-share that that takes. Are you actually speaking from experience here? Over the past 20-30 years it's been like, what, 4-5 new things to learn?