The UUCP delivery agents are used to forward email over UUCP networks. The following declaration enables six delivery agents (although two are synonyms for others, meaning there are really only four):

MAILER(`uucp')

The enabled UUCP delivery agents are shown in Table 20-16.

Note that the smtp delivery agent must be defined first if you want to use uucp-dom and uucp-uudom:

MAILER(`smtp')   define first
MAILER(`uucp')   define second

Table 20-17 shows the mc configuration macros that are used to change the defaults for all the uucp delivery agents. Changing one will affect all of them.

Table 20-17. Defaults for the uucp delivery agents

Macro	§	Default
UUCP_MAILER_ARGS	See this section	A=uux - -r -z -a$g -gC $h!rmail ($u)
UUCP_MAILER_CHARSET	C=	no C= default
UUCP_MAILER_FLAGS	See this section	F=DFMhuUd[8]
UUCP_MAILER_MAX	m=	M=100000
UUCP_MAILER_PATH	See this section	P=/usr/bin/uux
none	R=	R=EnvToU/HdrToU (for uucp, uucp-old, suucp, and uucp-new)
none	R=	R=EnvToSMTP/HdrFromSMTP (for uucp-dom and uucp-uudom)
none	S=	S=FromU (for uucp, uucp-old, suucp, and uucp-new)
none	S=	S=EnvFromUD/HdrFromSMTP (for uucp-dom)
none	S=	S=EnvFromUUD/HdrFromSMTP (for uucp-uudom)
none	T=	T=X-UUCP/X-UUCP/X-Unix
UUCP_MAILER_QGRP	Q=	no Q= default

^[8] This is the basic set for all the uucp delivery agents. The uucp-new delivery agent also has F=m set. The uucp-dom delivery agent has the F=U removed from the basic set.

These delivery agents are described in greater detail in Chapter 4, beginning in Section 4.6.