no_default_msa	Don't generate the default MSA daemon, i.e.,
		DAEMON_OPTIONS(`Port=587,Name=MSA,M=E')
		To define a MSA daemon with other parameters, use this
		FEATURE and introduce new settings via DAEMON_OPTIONS().

ClientPortOptions and DaemonPortOptions are special cases since multiple
clients/daemons can be defined.  This can be done via

	CLIENT_OPTIONS(`field1=value1,field2=value2,...')
	DAEMON_OPTIONS(`field1=value1,field2=value2,...')

Note that multiple CLIENT_OPTIONS() commands (and therefore multiple
ClientPortOptions settings) are allowed in order to give settings for each
protocol family (e.g., one for Family=inet and one for Family=inet6).  A
restriction placed on one family only affects outgoing connections on that
particular family.

If DAEMON_OPTIONS is not used, then the default is

	DAEMON_OPTIONS(`Port=smtp, Name=MTA')
	DAEMON_OPTIONS(`Port=587, Name=MSA, M=E')

If you use one DAEMON_OPTIONS macro, it will alter the parameters
of the first of these.  The second will still be defaulted; it
represents a "Message Submission Agent" (MSA) as defined by RFC
2476 (see below).  To turn off the default definition for the MSA,
use FEATURE(`no_default_msa') (see also FEATURES).  If you use
additional DAEMON_OPTIONS macros, they will add additional daemons.

Example 1:  To change the port for the SMTP listener, while
still using the MSA default, use
	DAEMON_OPTIONS(`Port=925, Name=MTA')

Example 2:  To change the port for the MSA daemon, while still
using the default SMTP port, use
	FEATURE(`no_default_msa')
	DAEMON_OPTIONS(`Name=MTA')
	DAEMON_OPTIONS(`Port=987, Name=MSA, M=E')

Note that if the first of those DAEMON_OPTIONS lines were omitted, then
there would be no listener on the standard SMTP port.