sendmail, 4th Edition

pop

Deliver using MH’s spop V8.6 and later

When using the pop delivery agent, actual delivery is via the spop(8) program, which provides a way to perform local delivery for any user that does not have a local Unix account. This is handy in a POP universe where it is often undesirable for thousands of POP clients to also have local accounts. It is also useful at sites where security concerns prevent POP-only users from also having Unix accounts.

Support is included in your mc configuration file like this:

MAILER(`local')    ← define this
MAILER(`pop')      ← before this

Note that the local delivery agent must be defined before you can define pop.

The defaults for the pop delivery agent are shown in Table 20-11, along with the mc configuration macros used to alter those defaults.

Table 20-11. Defaults for the pop delivery agent

Macro	§	Default
POP_MAILER_ARGS	How to define A= with your mc configuration on page 738	A=pop $u
POP_MAILER_FLAGS	Delivery Agent F= Flags on page 759	F=lsDFMqPenu
POP_MAILER_PATH	Modify P= using an mc configuration macro on page 750	P=/usr/lib/mh/spop
None	R= on page 751	R=EnvToL/HdrToL
None	S= on page 753	S=EnvFromL
None	T= on page 754	T=DNS/RFC822/X-Unix
POP_MAILER_QGRP	Q= on page 750	No Q= default

The spop program is distributed as part of the mh suite of software, and is available from:

http://rand-mh.sourceforge.net/