Imp 2.2 and Sendmail 8.11.2

[Peter Erickson]

I hope that I am asking this question at the proper place. I am
running Imp 2.2 with Sendmail 8.11.2 and Cyrus Imap 2.0.9 and I have
no problem recieving mail, I do have one problem sendmail mail. When
sending mail to any domain that is sendmail is not accepting for,
everything works fine. The problem happens, when I try to sendmail to
my domain. After clicking the send button, at the top of the screen it
says that the message was sent successfully, but it never comes.
Looking at the running processes, I see a process that never ends. I
have to kill it manually and then the mail will be sent when it
processes the queue next.

[root@silky /root]# ps waux | grep sendmail
root     12201  0.0  1.0  2396 1220 ?        S    Jan14   0:00
sendmail: accepting connections
root     13234  0.0  1.2  2480 1452 ?        S    15:09   0:00
        /usr/sbin/sendmail -i -freturnaddress@domain.com --
loginname@domain.com
                                         ^^^^^^^^^^^^^^^^^^^^^
^^^^^^^^^^^^^^^^^^
                                             return address
login name to imap server
root     13240  0.0  0.4  1224  512 pts/0    S    15:10   0:00 grep
sendmail
[root@silky /root]#

This is what the error message in the log file is:

Jan 15 15:09:35 silky sendmail[13232]: f0FL9ZA13232:
from=returnaddress@domain.com, size=347, class=0, nrcpts=1,
msgid=<979592975.
3a63670fb8388@w.x.y.z>, relay=webuser@localhost
                             ^^^^^^
                             ip of server
Jan 15 15:11:35 silky sendmail[13234]: f0FL9ZA13232: timeout waiting
for input from local during Draining Input
[root@silky log]#

Anyone with ideas? Thanks in advance.