HP-UX Mailing Solutions White Paper

Prerequisites
Following are the prerequisites to configure rmail on an HP-UX system:
• The Sendmail 8.13.3 software
NOTE: Sendmail 8.13.3 is available in the core HP-UX 11i v3 operating system.
• The rmail software
rmail is available as the default local mailer configuration in the sendmail.cf file in the
core HP-UX 11i v3 operating system
Configuring rmail as the Local Mailer
To configure rmail as the local mailer, specify the following entry in the /etc/mail/
sendmail.cf file:
Mlocal, P=/usr/bin/rmail
where:
Mlocal
Defines the local mailer.
P
Specifies the program used as the local mailer.
NOTE: The Mlocal, P=/usr/bin/rmail entry is the default entry in the /etc/mail/
sendmail.cf file.
Message Access Agent
This section discusses the popular message access agents Internet Message Access Protocol
(IMAP) and Post Office Protocol 3 (POP3). This section also discusses the prerequisites and the
procedure to configure these message access agents on an HP-UX system.
The Internet Message Access Protocol
IMAP is the standard protocol for accessing email from the local system. IMAP is a client/server
protocol in which email is received and stored in the server. The decision of whether a message
can be downloaded can be made by viewing the header information, which includes the sender
and subject of the letter. IMAP works with most email clients, such as Outlook Express, Netscape
Messenger, Eudora.
IMAP provides the following features:
• Download time of large and spam messages can be saved by deleting them by just viewing
the header information.
• Email accessible from multiple locations because the email messages remain on the server
and are always available.
• Messages are available on the server even if a system becomes inaccessible.
Configuring IMAP on an HP-UX System
This section discusses the prerequisites and the procedure to configure IMAP on an HP-UX
system.
Prerequisites
Following are the prerequisites for configuring IMAP on an HP-UX system:
• The Sendmail 8.13.3 Software
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