Solaris Version of sendmail

This section, which includes the following topics, describes some of the differences in the Solaris version of sendmail as compared to the generic Berkeley version.

• Flags Used and Not Used to Compile sendmail

• MILTER, Mail Filter API for sendmail

• Alternative sendmail Commands

• Versions of the Configuration File

Flags Used and Not Used to Compile sendmail

Starting in the Solaris 10 release, the following flags are used to compile sendmail. If your configuration requires other flags, you need to download the source and recompile the binary. You can find information about this process at http://www.sendmail.org.

Table 14-1 General sendmail Flags

Flag	Description
SOLARIS=21000	Support for the Solaris 10 release.
MILTER	Support for the Mail Filter API. In version 8.13 of sendmail, this flag is enabled by default. See MILTER, Mail Filter API for sendmail.
NETINET6	Support for IPv6. This flag has been moved from conf.h to Makefile.

Table 14-2 Maps and Database Types

Flag	Description
NDBM	Support for ndbm databases
NEWDB	Support for Berkeley DB databases
USERDB	Support for the user database
NIS	Support for nis databases
NISPLUS	Support for nisplus databases
LDAPMAP	Support for LDAP maps
MAP_REGEX	Support for regular expression maps

Table 14-3 Solaris Flags

Flag	Description
SUN_EXTENSIONS	Support for Sun extensions that are included in sun_compat.o.
SUN_INIT_DOMAIN	For backward compatibility, support for the use of NIS domain names to fully qualify the local host name. For more information, look for vendor-specific information in http://www.sendmail.org.
SUN_SIMPLIFIED_LDAP	Support for a simplified LDAP API, which is specific to Sun. For more information, look for vendor-specific information in http://www.sendmail.org.
VENDOR_DEFAULT=VENDOR_SUN	Selects Sun as the default vendor.

The following table lists generic flags that are not used to compile the version of sendmail that is delivered with the Solaris 10 release.

Table 14-4 Generic Flags Not Used in the Solaris Version of sendmail

Flag	Description
SASL	Simple Authentication and Security Layer (RFC 2554)
STARTTLS	Transaction Level Security (RFC 2487)

To see a list of the flags that are used to compile sendmail, use the following command.

% /usr/lib/sendmail -bt -d0.10 < /dev/null

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Note - The preceding command does not list the flags that are specific to Sun.

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MILTER, Mail Filter API for sendmail

MILTER, sendmail's Mail Filter API, enables third-party programs to access mail messages as they are being processed to filter meta-information and content. You do not need to build the filter and configure sendmail to use it. This API is enabled by default in version 8.13 of sendmail.

For more details, see the following:

• http://www.sendmail.org/

• http://www.milter.org/

Alternative sendmail Commands

The Solaris release does not include all of the command synonyms that are provided in the generic release from sendmail.org. This table includes a complete list of the command aliases. The table also lists whether the commands are included in the Solaris release and how to generate the same behavior by using sendmail.

Table 14-5 Alternate sendmail Commands

Alternate Name	In the Solaris Release?	Options With sendmail
hoststat	No	sendmail -bh
mailq	Yes	sendmail -bp
newaliases	Yes	sendmail -bi
purgestat	No	sendmail -bH
smtpd	No	sendmail -bd

Versions of the Configuration File

Starting in the Solaris 10 release, sendmail includes a configuration option that enables you to define the version of the sendmail.cf file. This option enables older configuration files to be used with the current version of sendmail. You can set the version level to values between 0 and 10. You can also define the vendor. Either Berkeley or Sun is a valid vendor option. If a version level is specified but no vendor is defined, Sun is used as the default vendor setting. The following table lists some of the valid options.

Table 14-6 Version Values for the Configuration File

Field	Description
V7/Sun	Setting that was used for version 8.8 of sendmail.
V8/Sun	Setting that was used for version 8.9 of sendmail. This setting was included in the Solaris 8 release.
V9/Sun	Setting that was used for versions 8.10 and 8.11 of sendmail.
V10/Sun	Setting that is used for version 8.12 and version 8.13 of sendmail. Version 8.12 is the default for the Solaris 9 release. Starting in the Solaris 10 release, version 8.13 is the default.

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Note - You are urged not to use V1/Sun. For more information, refer to http://www.sendmail.org/vendor/sun/differences.html#4.

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For task information, refer to Building the sendmail.cf Configuration File in Chapter 13, Mail Services (Tasks).