Mail delivery failed to the remote servers

[Balaji Sierra]

Hi,

We unable to send any email to our payment gateway website.([email protected])

We receiving mail delivery failed when we trying to send any mail to [email protected]

Error Message: "SMTP error from remote mail server after initial connection: 554 Blocked"

Please suggest

 

[cPRex]

Hey there! It sounds like you have been blocked from sending to that remote server, so there won't be anything you can do on your side to resolve that issue.

You may want to check and see if your server's IP address is listed on any blacklists using a tool like this:

Email Blacklist Check - IP Blacklist Check - See if your server is blacklisted

mxtoolbox.com

If not, you'll want to reach out to that mail provider using a different address that is not blocked to let them know about this issue.

 

[Balaji Sierra]

Hi

Thanks for the reply.

We checked our IP in the mxtoolbox.com. We have 1 blocklist RATS Spam.

Kindly suggest how to fix this "Does IP Address comply with reverse hostname naming convention... Failed!"

Please find screenshots

 

[cPRex]

They have a similar tool here where you can enter your server's IP to check the reverse DNS configuration online:

Reverse IP Lookup - MxToolbox

mxtoolbox.com

Just enter the IP here, and see if the answer returned is the server's hostname. If not, you can speak with your hosting provider to have that updated as that is controlled on their end.

 

[Balaji Sierra]

Hi ,

I checked my IP with reverse IP lookup. It results my domain name correctly.

Please suggest

 

[cPRex]

I'm not sure how the RATS site performs their check, but I haven't had MXToolbox steer me wrong on reverse DNS checks yet. If it points back to the hostname of the server (not an individual domain, but the server's hostname) then I believe that setting is fine.

It's important to note that isn't why you would end up on a blacklist, but it's just something they are pointing out.