MAX MX RECORDS

TCP/IP-channel-specific options: MAX_MX_RECORDS (integer &#x3c;= 32)
This TCP/IP channel SMTP/LMTP client option specifies the maximum number of MX records that the MTA should try using when attempting to  deliver a message. The maximum value is 32, which is also the default. (Note that the IP_ACCESS mapping table  provides an alternate means  to achieve such limits.)

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