Mail delivery failed to the remote servers

Balaji Sierra

• May 05, 2021 07:25

Hi, We unable to send any email to our payment gateway website.(xxx@globalpay.com) We receiving mail delivery failed when we trying to send any mail to xxx@globalpay.com Error Message: "SMTP error from remote mail server after initial connection: 554 Blocked" Please suggest

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  cPRex Jurassic Moderator

  • May 05, 2021 14:58

  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:

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  Balaji Sierra

  • May 06, 2021 12:31

  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

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  cPRex Jurassic Moderator

  • May 06, 2021 13:26

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

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  Balaji Sierra

  • May 06, 2021 13:40

  Hi , I checked my IP with reverse IP lookup. It results my domain name correctly. Please suggest

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  cPRex Jurassic Moderator

  • May 06, 2021 13:45

  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.

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