RedHat Linux 9, Courier 0.45.6 or 0.47

I can't send mail from ordinary user, from root sending works. Used command:

-------------------------------------------------------------- $ echo "sometext" | sendmail someuser@localhost

--------------------------------------------------------------

But for all that:

-------------------------------------------------------------- $ ps ax|grep sendmail 8701 pts/0 S 0:00 sendmail someuser@localhost

-------------------------------------------------------------- $ strace -p 8701 Process 8701 attached - interrupt to quit futex(0x4213405c, FUTEX_WAIT, 2, NULL <unfinished ...>

-------------------------------------------------------------- Sendmail process freezes...

Search in Internet shows these pages: http://www.mail-archive.com/lprng@lprng.co...@ http://www.mail-archive.com/lprng@lprng.co...@ These pages says: possible problems in incorrect work with NPTL.

I try to do the same way as:

-------------------------------------------------------------- $ export LD_ASSUME_KERNEL=2.4.1 $ echo "sometext" | sendmail someuser@localhost

And this works! Is this a bug in courier's sendmail?