For example, something that is too complex for your comfort level, a security concern, or maybe your hardware can’t keep up with the service’s needs?
1 point
ip-reputation is also important. Mailgun, an email service for mass mailing, is doing an „ip-warmup“ if you choose a dedicated ip. So, if you are self-hosting with dynamic-ip, i think you would have a very very low ip-reputation.
2 points
True, but this has nothing to do with Google and other, is a well done method to avoid spam.
1 point
so what else is a factor for reputation? Or is it like if you dont pay to get your mail-domain whitelisted we lower your reputation score?
1 point
