I need to set up newsletter signup for a site.
Initially, I was eyeing services like MailChimp and SendPulse, but I'm not comfortable with their prices and I'm not really keen on sort of giving up control over and giving them access to the mailing list (for both mine and my users' sake).
The downside of not picking such a service seems to be that they are supposedly way more resistant to being blacklisted, rate limited or their emails being marked as spam.
The question is whether even if I follow Google's recommendations about mass email service configurations is it still worth going with one of these big companies from a blacklist/rate-limiting/marked-as-spam perspective over setting up a DIY mass email service with Firebase Cloud Functions and SMTP?