Technical data

Configuring and Managing SMTP
17.5 Modifying the SMTP Configuration
• TCPIP$SMTP_MTS_ALLIN1
Used in older versions of TCP/IP Services. When relaying mail from
the SMTP environment to MTS (the message router), the symbiont puts
TCPIP$SMTP into the From: field. Otherwise, older versions of MR/MRGATE
send the mail back with a
Return path too complicated error. No longer
needed if you are running MR and MRGATE Versions 3.3A.
• TCPIP$SMTP_POSTMASTER_ALIAS user-name
Enables mail bounced by the local host to appear to be from a user name
other than TCPIP$[e-mail]. Specify the user name portion of the
address, not including the host name. For example:
$ DEFINE/SYSTEM TCPIP$SMTP_POSTMASTER_ALIAS "Postmaster"
In this example, bounced mail sent from the local host appears to be from
[e-mail] rather than from TCPIP$[e-mail].
Be sure to set up a forwarding entry for the user name you specify (see
Section 17.2.2).
• TCPIP$SMTP_REWRITE_MTS_FROM
If you have most or all of your users’ mail forwarded to ALL-IN-1, use this
logical name to instruct the symbiont to parse the user name out of the
complex MTS address and append the local host name instead. As a result,
only a simple address is sent to the Internet and any replies are relayed
correctly to MTS.
• TCPIP$SMTP_ALTGATE_ALWAYS
Instructs the symbiont to send all mail that is destined for another system
(nonlocal mail) to the alternate gateway. Zone check is not performed.
• TCPIP$SMTP_MX_IF_NOALTGATE
Instructs the symbiont to use MX records to connect to a host if the alternate
gateway cannot be reached.
• TCPIP$SMTP_NO_MX
Instructs the SMTP symbiont not to use MX records to route mail. Attempts
to translate the domain part of each SMTP address into a host name and
send the mail directly to that address. If the host name does not translate
to an address, the mail is returned. If the host is not available, the mail is
queued again.
• TCPIP$SMTP_LOCAL_ALIAS_ONLY
Instructs the SMTP symbiont to use only the contents of the local alias file
for determining whether a mail message is local.
• TCPIP$SMTP_PROHIBIT_USER_HEADERS
Disables outbound alias processing. This prevents the use of the
TCPIP$SMTP_FROM logical.
• TCPIP$SMTP_SFF_REQUIRES_PRIV
This Boolean logical, if defined, requires users to set either SYSPRV, BYPASS
or OPER privileges before using the Send From File (SFF) feature. See
Section 17.7 for more information about this feature.
17–14 Configuring and Managing SMTP