MX ACCESS mapping table

New in MS 8.1.0.1, the  mapping table provides the means to control and/or override MX lookup operations.

The  access mapping table is consulted during SMTP/LMTP client operations just prior to  performing the MX lookup on the deatination domain. It thus provides a means of changing the server hosts for a given domain. c

The  mapping table probe has the following default format: source-channel&#x7c;to-address&#x7c;domain Or if bit 16 (value 65536) of the   MTA option is set,  then the format is: source-channel&#x7c;conversion-tag&#x7c;to-address&#x7c;domain Here   is the channel from which the message is being dequeued,   is a comma-separated list of the conversion tags associated with the message,   first recipient address, and   is the domain the message is being sent to.

The mapping can set the flags shown in Table of   mapping flags.

Note that at present all of the mapping actions are mutually exclusive, that is, it only makes sense to specify one of $F, $N, $T, or $Y.

See also:
 * AUTH_ACCESS mapping table
 * IP_ACCESS mapping table
 * TCPIP-channel-specific options
 * TCPIP channels