Sending and receiving electronic mail (e-mail) are among the most important services on the Internet. Here the role of the post offices is taken over by the mail servers, which are also called Mail Transfer Agents (MTA). Mail servers handle transfer of e-mails over the network and ensure they are delivered to mailboxes.
Mail User Agents (MUAs) offer user-friendly interfaces for performing the following tasks:
Writing and sending e-mails
Accessing the mailboxes
Presenting and processing the electronic mail received
Man pages
This chapter is in part based on the manual pages (man pages) for Postfix and IMAP/POP3. The man pages which provide further information are referred to at the appropriate places in the chapter, e.g. in the description of programs and parameters/options. You can find the most up-to-date man pages on the Internet at:
www.postfix.org/ (Postfix)
In addition, the Postfix and IMAP/POP3 man pages will be available on your server after you have installed these components.
The Postfix man pages can be found on your server
under <installation-path>/readme/ MAIL.postfix/html/ as HTML files,
under <installation-path>/readme/ MAIL.postfix/pdf/ as PDF files,
under <installation-path>/readme/ MAIL.postfix/text/ as text files.
(Standard installation path for Postfix: /opt/MAIL/postfix/)
The IMAP/POP3 man pages can be found on your server
under <installation-path>/readme/ MAIL.imap/html/ as HTML files,
under <installation-path>/readme/ MAIL.imap/text/ as text files.
(Standard installation path for IMAP/POP3: /opt/MAIL/imap/)
Where the Postfix or IMAP/POP3 man pages are referred to in the course of this chapter, these sources are meant. You should by preference use the man pages supplied with the product as these relate to the software version contained in the product.