Cant figure mail server

I reinstalled my dedicated server with centos 6.8 and installed virtualmin which I like and its working fine. In the past after the instaltion mail system worked fine but this time Im not sure what Im doing wrong.

I have create 3 virtual servers domain1 , 2 and 3
The problem is that when I go in browser to mail.domain2.com it redirects me to domain1.com

Oct 6 07:46:35 server postfix/local[10266]: 03001F74CD: to=domainX@server.myserver.com, relay=local, delay=0.07, delays=0.02/0/0/0.04, dsn=2.0.0, status=sent (delivered to command: /usr/bin/procmail-wrapper -o -a $DOMAIN -d $LOGNAME)
Oct 6 07:46:35 server postfix/qmgr[1879]: 03001F74CD: removed
Oct 6 07:47:35 server postfix/pickup[10261]: 24277F74C9: uid=502 from=
Oct 6 07:47:35 server postfix/cleanup[10262]: 24277F74C9: message-id=95ae0826c23a9d32b4178f0a7e2e35f0@domainX.com
Oct 6 07:47:35 server postfix/qmgr[1879]: 24277F74C9: from=domainX@server.myserver.com, size=675, nrcpt=1 (queue active)
Oct 6 07:47:35 server postfix/error[10521]: 24277F74C9: to=info@adultwpthemes.eu, relay=none, delay=0.11, delays=0.08/0/0/0.03, dsn=5.0.0, status=bounced (User unknown in virtual alias table)
Oct 6 07:47:35 server postfix/cleanup[10262]: 349FCF74CD: message-id=20161006114735.349FCF74CD@server.myserver.com
Oct 6 07:47:35 server postfix/bounce[10265]: 24277F74C9: sender non-delivery notification: 349FCF74CD
Oct 6 07:47:35 server postfix/qmgr[1879]: 349FCF74CD: from=<>, size=2574, nrcpt=1 (queue active)
Oct 6 07:47:35 server postfix/qmgr[1879]: 24277F74C9: removed
Oct 6 07:47:35 server postfix/local[10266]: 349FCF74CD: to=domainX@server.myserver.com, relay=local, delay=0.07, delays=0.03/0/0/0.04, dsn=2.0.0, status=sent (delivered to command: /usr/bin/procmail-wrapper -o -a $DOMAIN -d $LOGNAME)
Oct 6 07:47:35 server postfix/qmgr[1879]: 349FCF74CD: removed

I tried to check intodns.com and mxtoolbox.com and everything is bad.
When I check dns records of a domain in virtual server editor everything seems ok but in terminal there is the messagge no MX records

I have wordpress installed on 3 sites, also in email settings of virtual server I see BCC incoming email to - Not currently enabled in your Postfix configuration
the above link sends me to https://s12.postimg.org/bo8xcx9gt/virt.png

Do you have any idea how can I get mail working on my server? (Mail box is checked in virtual server features)