April 2020
Beginner
688 pages
19h 24m
English
Content preview from Linux Administration: A Beginner's Guide, Eighth Edition, 8th Edition
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21 |
Post Office Protocol and Internet Mail Access Protocol (POP and IMAP) |
In Chapter 20, we covered Simple Mail Transfer Protocol (SMTP), the underlying e-mail transport mechanism or protocol by which e-mail is sent from e-mail clients to the server and from one mail server to another mail server. We also mentioned how mail delivery agents (MDAs) facilitate the processing of incoming mail (such as sorting or filtering mail according to sender, subject line, length of message, keywords, and so on). All of this processing is usually done after the mail has been transported to the final destination mail server. For the MDA functionality, a program like Procmail can be used. Procmail can make copies of user e-mails available to users ...
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