smtp; 553 sorry, invalid HELO hostname (#5.7.1)

ltoso

Active Member
Jan 4, 2009
25
0
51
Hi,
my email server is sending emails to gmail, yahoo and other free email service providers but when i send email to rediffmail.com it gives the following error

smtp; 553 sorry, invalid HELO hostname (#5.7.1)

after looking at the internet for solution it says that this type of error comes when the hostname set inside cpanel doesn't lead to an ip address or is not FQDN but in my case i have checked the hostname and checked if my hostname leads to an ip address on pinging it does

Please recommend
 

cPanelMichael

Administrator
Staff member
Apr 11, 2011
47,904
2,218
463
Hello :)

Could you let us know the specific output from /var/log/exim_mainlog when this happens? EX:

Code:
exigrep [email protected] /var/log/exim_mainlog
Thank you.
 

ltoso

Active Member
Jan 4, 2009
25
0
51
Hi,
following is the output of the above command, i have just replaced my sending email id with [email protected] and rediff email id to [email protected] and the ip from which i am sending to xxx.xxx.xxx.xxx to keep my info private

Code:
2016-01-04 05:34:06 1aG1ee-000383-SW ** [email protected] R=dkim_loo                                                                                        kuphost T=dkim_remote_smtp H=mx.rediffmail.rediff.akadns.net [202.137.234.30] X=                                                                                        TLSv1:DHE-RSA-AES256-SHA:256 CV=no: SMTP error from remote mail server after RCP                                                                                        T TO:<[email protected]>: 553 sorry, invalid HELO hostname (#5.7.1)
2016-01-04 05:34:06 1aG1ee-000383-SW Completed
 
Last edited by a moderator:

cPanelMichael

Administrator
Staff member
Apr 11, 2011
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