December 2002
Intermediate to advanced
1232 pages
56h 38m
English
Content preview from Sendmail, 3rd Edition
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Delivery Agents by Name
As we have shown earlier, the MAILER command is used to enable a class of delivery agents. For example:
MAILER(`smtp')
This command causes support for the smtp,
esmtp, smtp8,
dsmtp, and relay delivery
agents to be included in your configuration file. Further, the
confSMTP_MAILER mc
configuration macro can be used to define which one you want to use
as your default outbound delivery agent:
define(`confSMTP_MAILER', `dsmtp')
Before you can choose a default, however, you need to know what each delivery agent does and how they differ. In this section, we describe these and all the other standard and special delivery agents. We describe them in alphabetical order, with a convenient summary shown in Table 20-1.
Table 20-1. Delivery agents described by name
|
MAILER( ) |
Agents declared |
Description |
|
|
cyrus and cyrusbb (cyrus) |
Deliver to a local cyrus user. Handles user+where@local.host syntax to the user’s IMAP Vmailbox. |
|
|
cyrusv2 (cyrusv2) |
Somewhat like |
|
none |
discard (discard) |
Causes the message to be accepted and discarded. |
|
none |
error (error) |
Causes the message to be rejected. |
|
|
fax (fax) |
Delivers to a program that handles fax delivery. |
|
none |
*file* and *include* (*file* and *include*) |
Performs delivery by appending to a file, and handle delivery through
|
|
|
local (See this section), prog (See this section) |
Performs final, local ... |
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