On suchsystems, sendmail saves important information from such
lines for later use.
On non-Unix machines (VMS or NT) the conventions are different, so you won??™t want
sendmail to treat suchlines as special. Similarly, if your Unix site has converted entirely
away from this convention (with mhs or the like), you might not want this special
treatment.
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3.4 Compile-Time Macro Reference | 131
To disable special treatment of ???From ??? lines, define the NOTUNIX compile-time macro in
your Build m4 file:
APPENDDEF(`confENVDEF??, `-DNOTUNIX??)
Defining NOTUNIX causes the code for eatfrom( ) to be excluded from sendmail. Th e-d30.2
debugging switchcan be used to watch eatfrom( ) and to determine whether NOTUNIX was
declared when compiling sendmail.
3.4.40 _PATH...
Hardcoded paths inside sendmail Tune with confENVDEF
Only a few pathnames are hardcoded into sendmail. The most obvious is its configuration
file because that file lists the locations of nearly all other files. For various reasons, a few
other file locations are also hardcoded. Here, we describe those that you can change. Note
that the general form for all such changes uses the confENVDEF declaration in your Build m4
file:
APPENDDEF(`confENVDEF??, `-D_PATH.
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