i do not have a process for qmail-pop3 .
my server is SME 5.6U4.
[root@server root]# ps aux | grep qmail
qmaill 419 0.0 0.2 1300 332 ? S Sep04 0:00 /usr/local/bin/mu
root 428 0.0 0.2 1280 304 ? S Sep04 0:00 supervise qmail
qmaill 438 0.0 0.2 1300 332 ? S Sep04 0:00 /usr/local/bin/mu
qmaill 439 0.0 0.2 1300 332 ? S Sep04 0:00 /usr/local/bin/mu
qmails 1484 0.0 0.2 1332 360 ? S Sep04 0:00 qmail-send
root 1486 0.0 0.2 1296 304 ? S Sep04 0:00 qmail-lspawn ./Ma
qmailr 1487 0.0 0.2 1296 292 ? S Sep04 0:00 qmail-rspawn
qmailq 1488 0.0 0.2 1288 316 ? S Sep04 0:00 qmail-clean
qmaild 1681 0.0 0.3 1348 468 ? S Sep04 0:00 /usr/local/bin/tc
cheers klaus