DNS Reverse Lookup Failed

Error:  Task 'me@mydomain.com ' Sending reported error: 'The server responded: 550 This system is configured to reject mail from 999.999.999.999 [999.999.999.999] (DNS reverse lookup failed)'

Description: You receive this error message when attempting to send mail through the Host Depot Email servers. The Host Depot email servers use Reverse DNS lookups to verify the sender.  This helps with the amount of SPAM allowed in.  

Solution: What you need to do is talk to the entity responsible for maintaining your public DNS.  This is normally your ISP.  What you want in the public DNS is a PTR record.  This associates your public IP address  with a FQDN.  You want the domain name portion of the FQDN to match what your sending SMTP addresses contain. 

Was this answer helpful?

 Print this Article

Also Read

How do I connect to my Access database from my web site?

To access your Access database from your web site, follow this procedure:   Upload your...

How do I get ASP.NET to work on my website?

To begin using ASP.NET on your website, log into the SiteUtil Control Panel and select Folder...

What is PageCounter and how do I use it?

About Page Counter PageCounter is an object that counts and displays the number of times a Web...

Is Joomla supported

Older versions of JOOMLA prior to Version 3.2 are supported based on the Joomla...

What is the PERL mail path?

The PERL physical mail path on most web servers is c:\components\sendmail\sendmail.exe.