@andirahmat said in Cloudron built in smtp for newsletter:
Is cloudron build in email server considered as basic SMTP? Will it instantly marked as spam an blacklisted by all mail provider if i send newsletter for marketing funnel purpose to around 1000 email with frequency once or twice a a week. I want to avoid mailgun.
Yes, Cloudron is "basic SMTP" (per their definition). It's really hard to say whether your VPS provider will take offense with sending 1000 emails twice a week or not. You should probably just ask them. If they are one of the "big" VPS providers, be totally prepared for anything, including your account being banned. This is just how they work since even if they say it's totally fine some internal alert. kicks in, not being all fatalistic :-).
Anyway, I would recommend using external relay for large lists (1000 is big enough).