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20.5 Delivery Agent Equates

Recall that the form for the M command is:

Msymname, equate, equate, equate, ...

Each equate expression is of the form:

field=arg

The field is one of those in Table 20-18. Only the first character of the field is recognized. For example, all of the following are equivalent:

S=21
Sender=21
SenderRuleSet=21

The field is followed by optional whitespace, the mandatory = character, optional whitespace, and finally the arg. The form of the arg varies depending on the field. The arg might or might not be required.

Special characters can be embedded into the field as shown in Table 21-2 of Section 21.3.1. For example, the backslash notation can be used to embed commas into the A= delivery agent equate like this:

...    A=eatmail -F0\,12\,99

The complete list of delivery agent equates is shown in Table 20-18. A full description of each begins in the next section. They are presented in alphabetical order, rather than the order in which they would appear in typical delivery agent definitions.

Table 20-18. Delivery agent equates

Equate

Field name

§

Meaning

/=

/path

/= (forward slash)

Set a chroot directory (V8.10 and above)

A=

Argv

A=

Delivery agent's command-line arguments

C=

CharSet

C=

Default MIME character set (V8.7 and above)

D=

Directory

D=

Delivery agent working directory (V8.6 and above)

E=

EOL

E=

End-of-line string

F=

Flags

F=

Delivery agent flags

L=

LineLimit

L=

Maximum line length (V8.1 and above)

M=

MaxMsgSize

M=

Maximum message size

m=

maxMsgsPerConn

m=

Max messages per connection (V8.10 and above)

N=

Niceness

N=

How to nice(2) the agent (V8.7 and above)

P=

Path

P=

Path to the delivery agent

Q=

QueueGroup

Q=

The name of the queue group to use (V8.12 and above)

R=

Recipient

R=

Recipient rewriting rule set

r=

recipients

r=

Maximum recipients per envelope (V8.12 and above)

S=

Sender

S=

Sender rewriting rule set

T=

Type

T=

Types for DSN diagnostics (V8.7 and above)

U=

UID

U=

Run agent as user-id:group-id (V8.7 and above)

W=

Wait

W=

Timeout for a process wait (V8.10 and above)

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