In general, the files in the cf/mailer directory should never be modified. If one of the
definitions needs to be tuned, use the special keywords described under the individual
delivery agent equates (?§20.5 on page 736). For example, the following line modifies
the maximum message size (the M= delivery agent equate, ?§20.5.8 on page 746)
for the UUCP agent:
define(`UUCP_MAX_SIZE??,`1000000??)
Here, the maximum size of a UUCP message has been increased from the default of
100,000 bytes to a larger limit of 1,000,000 bytes.
* Prior to V8 sendmail, both local and prog were required.
This is the Title of the Book, eMatter Edition
Copyright ?© 2007 O??™Reilly & Associates, Inc. All rights reserved.
714 | Chapter 20: The M (Mail Delivery Agent) Configuration Command
20.3.1 Choose Preferred Agents
Four mc configuration macros are available, beginning withV8.10 sendmail, to help
you choose the delivery agent you prefer in various situations.
20.3.1.1 confSMTP_MAILER
The confSMTP_MAILER mc configuration macro is used to specify your preference for
the delivery agent to handle outbound SMTP connections. If you don??™t define
confSMTP_MAILER, the default is esmtp (?§20.4.13.2 on page 732). Other legal choices
are relay (?§20.4.13.5 on page 733), smtp (?§20.4.13 on page 731), smtp8 (?§20.4.13.3
on page 732), and dsmtp (?§20.4.13.
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