Managing mail with MMDF

Using name server resource records with MMDF

Name service can be used to route mail over TCP/IP (SMTP) if you have TCP/IP installed and configured. See ``Selecting name server lookup method''.

MMDF can use these name server resource records: A, CNAME, MB, MR, MG, and MX. See ``Mail-related name server resource records''.

Use MX resource records by defining a channel that uses a table that is configured to query a name server. See ``Table Data'' in ``Modifying MMDF table parameters''.

Use A and CNAME resource records by including a domain that uses a table that is configured to do subdomain lookups. See ``Lookup Options'' in ``Modifying MMDF table parameters''. Usually the root domain is used for this purpose.

Use MB, MR, and MG resource records by including an ALIAS declaration in the /usr/mmdf/mmdftailor file. For example:

   MTBL name=nsalias, flags=ns, show="DNS MR, MB records.
   	flags=alias
   ALIAS   table=nsalias

The program host(ADMN) may be used to exercise the interface routines to the name server that are used by MMDF.