SOCKETMAP
Enable use of socket database-map type (V8.13 and above) Tune with confMAPDEF
The SOCKETMAP compile-time macro enables use of the
new socket
database-map type (Alphabetized Database-Map Types). You
define SOCKETMAP inside your Build m4 file with a
line like this:
APPENDDEF(`confMAPDEF', `-DSOCKETMAP')
If you use a vendor-supplied sendmail program, you may check to see whether it includes SOCKETMAP support by running a command like the following:
% /usr/sbin/sendmail -bt -d0.4 < /dev/null | grep SOCKETMAP
If a line of text containing SOCKETMAP is printed in response, you indeed have support for SOCKETMAP. If not, you will either need to contact your vender or download and build open source sendmail.
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