I use Release 8.0.3.GA.5664.UBUNTU12.64 UBUNTU12_64 FOSS edition and Ubuntu Server 64bit.
In recent time, my mail server is listed in blacklist of SORBS (Spam and Open-Relay Blocking System).
After send mail to domain mail another to forward mail " Undelivered Mail Returned to Sender " :
The mail system
<firstname.lastname@example.org>: host mail.actec.com.vn[188.8.131.52] said:
550-"JunkMail rejected - (mail.domain) [IP Mail Server ]:56643 is
in an RBL, 550 see Dynamic IP Addresses See:
http://www.sorbs.net/lookup.shtml?<IP>" (in reply to RCPT
I'm check my Mail Server, Mail Server of me is Static IP, not Dynamic IP
and I'm register reverse DNS to ISP "Viettel IDC" so Mail Server of me
After, I'm access Support Request check IP mail server to domain mail server listed to DUHL
Screenshot from 2013-10-29 14:53:37.jpg
But, I'm click to attempt delist to Ip address blacklist to "error"
The operation failed
No acceptable MX records found for mail.domain.
Any help will be great ,thanks a lot.