I have no problems with Gmail from Digital Ocean. But I have both spf, DKIM, DMARC and a reverse pointer. You need to not look spammy.
One advantage to using a VPS is your IP is unique. That is you don't share it with a spammer. Not so with hosted services. Original Message From: m.r...@f1-outsourcing.eu Sent: October 26, 2020 1:06 AM To: dovecot@dovecot.org; sebast...@sebbe.eu Subject: RE: SV: Looking for a guide to collect all e-mail from the ISP mail server > and also the problem is that gmail imposes heavy spam filters and "reputation blocks" > meaning smaller providers with low email volumes, are put in the spam folder, even if > they never send spam, just because their email volume is so low (ergo, they must > prove they don't spam before getting out of ispam folder) How do you know that?