hija
commented
3 years ago I think no one has answered yet because there is no simple answer. You can reduce the chances of getting classified as spam by following these tips:
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Ensure that you enabled all of MIAB security functionality: MIAB provides SPF, DKIM, DNSSEC etc. These information is used to calculate a spam score and if they are correctly setup, your messages will be classified less likely.
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Try to include "personal information" whenever you write email, i.e. avoid "one-liner" emails, since a longer text body is more likely a real mail. If you include information like the name of the recipient and your own name, the spam score will be lowered as well.
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People should send mail to your mail and you should reply to them. By this, their mail server learns, that your recipient wants to have a conversation and it is more likely that your messages are not classified as spam.
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Your recipients should click the "not spam" button on your mails, if they were automatically moved to spam by Gmail.
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Have a good hoster with a good ip.
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Never send spam (Obvious...)
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Try to avoid mass mails
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If your VPS ip has previously been used to send spam, that's really bad and you should consider switching your host or vps.
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If you are listed on a black list that's already really bad.
I think if you follow these tips, you can lower the probability that your mails are classified as spam. This is no guarantee. Time will improve your reliability.
Good luck :)
themew
I'm interested in getting off google and considering hosting my own email...
https://github.com/mail-in-a-box/mailinabox/issues/921 sounds like email delivery can be terribly unreliable for the first few months of use.
Is that a common experience? A rare anomoally?