Can't receive email, send success from webmail but error SMTP on Outlook.

[chuprex]

Hi Admin and support team,

i have some problem about email on this webpanel centos.

1. i try sending email with webmail, can send success. But i can't receive any email.
2. i try using outlook to remote my mail server, but display error SMTP 450.4.1.1

What must i do?

Send Success


Can't receive any email




This my output from server

===============================================
Kernel:
Linux chuprex 2.6.32-504.12.2.el6.x86_64 #1 SMP Wed Mar 11 22:03:14 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

CPU info:
model name      : Intel(R) Xeon(R) CPU E5-2630L 0 @ 2.00GHz

Release:
CentOS release 6.6 (Final)

Arch:
x86_64

Virtualization Type:
kvm

Memory:
             total       used       free     shared    buffers     cached
Mem:           490        397         93          0         14        268
-/+ buffers/cache:        113        376
Swap:         1023          9       1014

MySQL info:
mysql  Ver 14.14 Distrib 5.1.73, for redhat-linux-gnu (x86_64) using readline 5.1

Disk Info:
Filesystem      Size  Used Avail Use% Mounted on
/dev/vda1        20G   15G  3.7G  81% /
tmpfs           246M     0  246M   0% /dev/shm
/opt/home        11G   28M   11G   1% /home


#
# /etc/fstab
# Created by anaconda on Tue Dec 17 15:22:08 2013
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(, mount( and/or blkid( for more info
#
LABEL=DOROOT            /                       ext4    defaults        1 1
tmpfs                   /dev/shm                tmpfs   defaults        0 0
devpts                  /dev/pts                devpts  gid=5,mode=620  0 0
sysfs                   /sys                    sysfs   defaults        0 0
proc                    /proc                   proc    defaults        0 0
/opt/swap               swap                    swap    defaults        0 0
/opt/home               /home                   ext4    rw,loop=/dev/loop0,usrjquota=quota.user,jqfmt=vfsv0             0 0

Apache PHP info
PHP 5.4.27 (cli) (built: Jun 10 2015 04:02:11)
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2014 Zend Technologies
    with the ionCube PHP Loader + Intrusion Protection from ioncube24.com (disabled) v5.0.7, Copyright (c) 2002-2015, by ionCube Ltd.

Apache start script check
httpd=${HTTPD-/usr/local/apache/bin/httpd}

CWP Admin check
/usr/local/cwpsrv/htdocs/admin
===============================================