Internet Services Delta Manual for HP-UX 11i Version 1.6

NOTE: Sendmail 8.11.1 depot will install the mailservs file in the
/usr/newconfig/etc/rc.config.d. You need to manually move this file to
/etc/rc.config.d/ in order to use this feature.
The priorities for these flags are defined in the
/usr/newconfig/etc/rc.conig.d/mailservs file.
• send_only
This option generates a sendmail.cf file without the 'check_compat' ruleset. You can only
send mail messages, but cannot receive them.
The SENDMAIL_SENDONLY flag in /etc/rc.config.d/mailservs file must be set to '1'
in order to use 'send_only' feature.
SMTP Authentication based on RFC 2554
Sendmail 8.11.1 supports SMTP AUTH as defined in RFC 2554 (SMTP Service Extension for
Authentication), which is based on SASL (Simple Authentication and Security Layer - RFC 2222).
SMTP authentication provides a robust tool to control relaying with maximum flexibility.
The authentication protocol exchange consists of a series of server challenges (otherwise known
as a ready response) and client answers that are specific to the authentication mechanism.
The AUTH parameter to the MAIL FROM command is set as:
MAIL FROM: from-addr AUTH=addr-spec
The addr-spec contains the identity that submitted the message to the delivery system. If the server
trusts the authenticated identity of the client to assert that the message was originally submitted by
the supplied addr-spec, then the server must supply the same addr-spec in an AUTH parameter
when relaying the message to any server that supports the AUTH extension.
The list of authentication mechanisms for AUTH can be specified in the option, AuthMechanisms
in the sendmail.cf file. By default, it appears in the sendmail.cf file as:
#O AuthMechanisms=GSSAPI KERBEROS_V4 DIGEST-MD5 CRAM-MD5
A new option to set AUTH parameter in MAIL FROM command has been added in the sendmail.cf
file. By default, this appears as:
#O AuthOptions
If this option is set to 'A', the AUTH= parameter for the MAIL FROM command will be issued only
when authentication succeeds.
DaemonPortOptions has one sub-option called 'modifiers' (M), one of which is 'a'. This instructs
the daemon to necessitate authentication for all connections to it.
By default, it appears in the sendmail.cf file as:
#O DefaultAuthInfo=/etc/mail/default-auth-info
The DefaultAuthInfo option sets the filename which contains the authentication information
for outgoing connections by default. It must contain the authorization id (userid), the authentication
id (authid), the password (plain text), and the realm to use, each on a separate line. This information
must be readable only by root (or the trusted user). If no realm is specified, $j will be used.
Virtual Hosting
Sendmail 8.11.1 imposes better control over virtusertable, which provides a domain-specific form
of aliasing and also allows multiple domains to be hosted on a single machine.
With this feature, users can have their own domain names and receive mails using these domain
names with a single host. You are required to obtain a new (available) domain name and set up
name servers for that domain. Then, you must configure MX records for your new domain.
10 Sendmail 8.11.1