Emails not delivering only to gmail user accounts

D

dpika23

Active Member
Oct 20, 2005
33
2
158
Kochi
cPanel Access Level
Root Administrator
CLOUDLINUX 6.5 x86_64 standard
WHM 11.42.1 (build 16)
cPanel Version 11.42.1 (build 16)
Apache version 2.2.27
Kernel version 2.6.32-531.1.2.lve1.2.54.el6.x86_64

On my linux server, I can't send email only to gmail/google apps users. All emails sent from this server is bouncing back with an error:

For gmail.com users, getting below error:

Code: 
[email protected]
retry time not reached for any host after a long failure period
Google apps users, getting bounce back email with below error message:

Code: 
[email protected]
    SMTP error from remote mail server after RCPT TO:<[email protected]>:
    host us2.mx3.mailhostbox.com [208.91.199.226]:
    550-5.1.1 <[email protected]>: Recipient address rejected:
    User unknown in virtual alias table
    550 5.1.1 Please see
http://support.mailhostbox.com/email-administrators-guide/error-codes for
explanation of the problem.
Got below error from error log on the server:

Code: 
2014-07-07 19:12:51 H=(mail.my-domain-name.com) [127.0.0.1]:44702 Warning: Sender rate 7.1 / 1h
2014-07-07 19:12:51 1X44yh-003BGU-NF <= [email protected] H=(mail.my-domain-name.com) [127.0.0.1]:44702 P=esmtpa A=dovecot_login:[email protected] S=806 [email protected].com T="Test mail to Gmail" for [email protected]
2014-07-07 19:12:51 SMTP connection from (mail.my-domain-name.com) [127.0.0.1]:44702 closed by QUIT
2014-07-07 19:12:51 cwd=/var/spool/exim 3 args: /usr/sbin/exim -Mc 1X44yh-003BGU-NF
2014-07-07 19:12:51 1X44yh-003BGU-NF SMTP connection outbound 1404724371 1X44yh-003BGU-NF my-domain-name.com [email protected]
Also when we stop firewall on the server, it successfully delivers email to gmail and google apps.

Can somebody help me to find exact reason behind this issue ?

Thanks,
 
D

dpika23

Active Member
Oct 20, 2005
33
2
158
Kochi
cPanel Access Level
Root Administrator
TCP_IN port 25 and 465 are already enabled.

Also when we stop firewall on the server, it successfully delivers email to google apps user account, but not to gmail user accounts.
 
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