checking files and directories for group read and write permissions,
sendmail checks the group of the controlling
user. On systems that allow a user to belong to one group at a time,
failure stops here with the check for that one group. On systems that
allow users to belong to many groups at once, failure causes
sendmail to check the other groups to which the
controlling user might belong. It finds the list of groups by calling
If your system lacks the getgrgid(3) call or
doesn't need it, you should exclude this code by
defining NO_GROUP_SET in sendmail/conf.h.
NO_GROUP_SET causes the code containing the call to
getgrgid(3) to be excluded from
sendmail. Be aware that excluding
getgrgid(3) support on systems that need it can
cause delivery to files to fail in mysterious ways.
If you are running a precompiled version of
sendmail, be aware that there is no debugging
switch that can tell you what the setting of NO_GROUP_SET was set to
at compile time.
Note that NO_GROUP_SET affects only inclusion of the
getgrgid(3) system call. See the
DontInitGroups option (DontInitGroups) for a means to exclude the
initgroups(3) system calls by means of your
New ports should be reported to
email@example.com so that they can be folded
into future releases.