All hosts for domain have been failing for a long time

[Alex H]

Hi I am getting the above error message when I try and send emails to a specific email address.

I have tried "WHM Home » Networking Setup » Resolver Configuration" and this appears to be OK

The domain name in-question resolves when using the "host" command from our server's command line?

However when i Telnet IPaddress 25 then the connection is timing out.

Not suite sure what to try next - any help much appreciated

Alex

 

[rpvw]

If you are unable to connect to the address, it is possible that the remote server is blocking your connections on port 25.

Things you might like to try:

• Check to see if your firewall or other protection system you might be running on your server is not blocking outgoing calls to the destination domain/IP
  
• Try sending a mail to that address from an external Hotmail or gmail account to see if the destination server/mailbox is actually receiving mails.
• Use a service like MX Lookup Tool - Check your DNS MX Records online - MxToolbox to make sure your server/account is configured OK (possibly wouldn't hurt to check the destination server as well)
  
• Last resort: stop exim -> remove all files in "/var/spool/exim/db" (I rather like to move them somewhere rather than delete them directly) -> restart exim
• If all else fails, you may need to contact the administrator of the destination server and establish if, and possibly why, they are blocking you.

Hope something helps.

 

[cPanelLauren]

Hi @Alex H

The suggestions by @rpvw are spot on, please let us know what you find!

Thanks!