메일 발송이 안됩니다

그냥 php 프로그램에서 메일 함수를 이용해서 보내면 보내지는데...

XE(제로보드)에서 비밀번호 찾기로 메일을 보내면 보내지지 않습니다...

왜 그런건가요?? 도와주세요...

maillog 기록==============================================================

mit, uid=48, gid=51): Permission denied
Jul 26 18:01:08 localhost sendmail[4738]: n6Q918Y7004738: from=apache, size=3628, class=0, nrcpts=1, relay=apache@localhost
Jul 26 18:01:08 localhost sendmail[4738]: n6Q918Y7004738:   0: fl=0x0, mode=10600: FIFO: dev=0/6, ino=147427, nlink=1, u/gid=48/48, size=0
Jul 26 18:01:08 localhost sendmail[4738]: n6Q918Y7004738:   1: fl=0x1, mode=20666: CHR: dev=0/17, ino=1361, nlink=1, u/gid=0/0, size=0
Jul 26 18:01:08 localhost sendmail[4738]: n6Q918Y7004738:   2: fl=0x8401, mode=100644: dev=253/0, ino=30835658, nlink=1, u/gid=0/0, size=12790
Jul 26 18:01:08 localhost sendmail[4738]: n6Q918Y7004738:   3: fl=0x2, mode=140777: SOCK localhost->[[UNIX: /dev/log]]
Jul 26 18:01:08 localhost sendmail[4738]: n6Q918Y7004738:   4: fl=0x1, mode=20666: CHR: dev=0/17, ino=1361, nlink=1, u/gid=0/0, size=0
Jul 26 18:01:08 localhost sendmail[4738]: n6Q918Y7004738: SYSERR(apache): queueup: cannot create queue file ./qfn6Q918Y7004738, euid=48, fd=-1, fp=0x0: Permission denied
Jul 27 04:02:07 localhost sendmail[6795]: dangerous permissions=40755 on queue directory /var/spool/clientmqueue/
Jul 27 04:02:22 localhost sendmail[6795]: n6QJ27wn006795: from=root, size=10265, class=0, nrcpts=1, msgid=<200907261902.n6QJ27wn006795@localhost.localdomain>, relay=root@localhost
Jul 27 04:02:22 localhost sendmail[7028]: n6QJ2M1b007028: from=<root@localhost.localdomain>, size=10545, class=0, nrcpts=1, msgid=<200907261902.n6QJ27wn006795@localhost.localdomain>, proto=ESMTP, daemon=MTA, relay=localhost.localdomain [127.0.0.1]