Defining IDENTPROTO neither includes nor
excludes RFC1413 code. All it does is change the default value for
the Timeout.ident option (See this section):
APPENDDEF(`confENVDEF', `-DIDENTPROTO=0') 
set Timeout.ident=0 by default
APPENDDEF(`confENVDEF', `-DIDENTPROTO=1') set Timeout.ident=30 by default
If you are running a precompiled sendmail
binary, you can use the -d0.10 debugging
command-line switch (-d0.10) to determine if
IDENTPROTO support is defined (if it appears in the list, it is set
to 1). New ports should be reported to
sendmail@sendmail.org so that they can be folded
into future releases.
