Mail server

A mail server (alternatively known as mail server software, email software, message transfer agent, mail transfer agent or MTA; particularly known as mail relay, mail exchanger or MX, and MX host; hereinafter, the Server) is software that transfers electronic mail messages from one computer to another using the Simple Mail Transfer Protocol (SMTP).

Best practices

• https://skrilnetz.net/setup-your-own-mailserver/
• https://www.linuxbabe.com/mail-server/block-email-spam-postfix
• https://manuals.gfi.com/en/kerio/connect/content/server-configuration/mail-delivery-and-dns-records/essential-dns-records-for-mail-delivery-and-spam-protection-1223.html
• https://www.cyberpunk.rs/mail-server-setup-postfix