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by blueflow
1506 days ago
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> TCP port 25, meaning these people cannot send their own email They cannot run a mail server, you mean. For sending mails, you have port 587 plus authentication, which also solves the reputation issue with dynamic pools. The reputation issues with dynamic pools likely stem from malware-infected user machines sending spam. |
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Let's say your email server is running on blueflow.person How do I send you an email on port 587 + authenticaion ? I'd need an account on your server to do that.. That's just silly! We can't expect everyone to have accounts on every mailserver, just to send email to eachother, that'd be like the postman having to have keys to every postbox to deliver letters!
Port 25 is where your email server expects to receive emails from other mailservers (like mine).