Mail Servers: Difference between revisions
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'''Mail servers''' come in different forms. | '''Mail servers''' come in different forms. | ||
* Mail Transfer Agents (MTA) typically speak SMTP and perhaps LMTP. | * Mail Transfer Agents (MTA) typically speak SMTP and perhaps LMTP. | ||
Latest revision as of 15:05, 10 August 2019
Mail servers come in different forms.
- Mail Transfer Agents (MTA) typically speak SMTP and perhaps LMTP.
- Mail Delivery Agents (MDA) speak IMAP, POP3 usually also supporting SSL/TLS (IMAPS, POP3S).
These mail servers can do some or all of the above.
Mail Plugins
These are add-ons to mail servers that enhance the functionality.
- SpamAssassin - analyze & score message content using bayesian filters
- Amavisd-new - meta-wrapper for spamassassin and a large number of anti-virus programs
- Sieve - a plugin for Dovecot to filter messages just before delivery
- Postgrey - a grey-listing agent for Postfix
- Procmail - a powerful filter/classifier utility