Question for people who self host their mail infra: do you do everything yourself, including relaying mail from your own ip, or do you use a smarthost/relay service? If so, which one?
ATM I use a relay service provided by my vps provider. Tried sending mails directly but then some mails are being flagged as spam or dropped. I want to move my vpses to another provider who does not have a relay service so might need a 3rd party solution.
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