9 and later
See ?§7.4.2 on page 270 for a complete description of this feature and how it interacts with
other relaying features.
17.8.28 FEATURE(mailertable)
Database selects new delivery agents V8.1 and later
A mailertable is a database that maps host.domain names to special delivery agent and new
domain name pairs. Essentially, it provides a database hook into the parse rule set 0.
Because mailertable follows handling of the local host, none of the hosts in the $=w
(?§22.6.16 on page 876) will be looked up with this feature.
New domain names that result from a mailertable lookup are used for routing but are not
reflected in the headers of messages.
To illustrate, one mapping in a source text file could look like this:
compuserv.com smtp:compuserve.com
The key portion (on the left) must be either a fully qualified host and domain name, such
as lady.bcx.com, or a partial domain specification witha leading dot, suchas .bcx.com. On
the right, the delivery agent name must be separated from the new domain name by a
colon. The source text file is converted into a database with the makemap(1) program
(?§10.5 on page 370). Beginning withV8.8 sendmail, the host part of the return value can
also specify a user:
downhost.com smtp:postmaster@mailhub.our.domain
?†‘
V8.8 and later
This is the Title of the Book, eMatter Edition
Copyright ?© 2007 O??™Reilly & Associates, Inc.
Pages:
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110