submit.mc配置文件的解释

/etc/mail/submit.mc和/etc/mail/submit.cf配置文件也是sendmail服务器的重要文件,它与sendmail.cf和sendmail.mc文件相同.submit.cf是由文件submit.mc编译产生的,以下是submit.mc文件的解释.

divert(-1)

#

# Copyright (c) 2001-2003 Sendmail, Inc. and its suppliers.

# All rights reserved.

#

# By using this file, you agree to the terms and conditions set

# forth in the LICENSE file which can be found at the top level of

# the sendmail distribution.

#

#

#

#  This is the prototype file for a set-group-ID sm-msp sendmail that

#  acts as a initial mail submission program.

#

divert(0)dnl

include(`/usr/share/sendmail-cf/m4/cf.m4')

VERSIONID(`linux setup for Red Hat Linux')dnl

define(`confCF_VERSION', `Submit')dnl

上句使用define定义了配置版本

define(`__OSTYPE__',`')dnl dirty hack to keep proto.m4 from complaining

上面一句表示,经过proto.m4程序的检查,将_OSTYPE_的值置空

define(`_USE_DECNET_SYNTAX_', `1')dnl support DECnet

上面一句表示,提供了对DECNET的支持

define(`confTIME_ZONE', `USE_TZ')dnl

定义系统时区

define(`confDONT_INIT_GROUPS', `True')dnl

表示禁止使用INIT_GROUPS程序

define(`confPID_FILE', `/var/run/sm-client.pid')dnl

dnl define(`confDIRECT_SUBMISSION_MODIFIERS',`C')

FEATURE(`use_ct_file')dnl

加载了信任的用户名单

dnl

dnl If you use IPv6 only, change [127.0.0.1] to [IPv6:::1]

为原配置文件中的最后一句,定义了msp的IP地址

FEATURE(`msp', `[127.0.0.1]')dnl