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Helo command rejected: Host not found


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I deleted one of my mailhosts in order to re-add it and see if that helps with the "internal IP identified as source" issue. But when I try to re-add, the test message fails to send with the error:

450 4.7.1 : Helo command rejected: Host not found

Does anyone know what hostname is used in the HELO command? Whether it's valid or not determines who I need to complain to.

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5 hours ago, Tesseract said:

I deleted one of my mailhosts in order to re-add it and see if that helps with the "internal IP identified as source" issue. But when I try to re-add, the test message fails to send with the error:

450 4.7.1 : Helo command rejected: Host not found

Does anyone know what hostname is used in the HELO command? Whether it's valid or not determines who I need to complain to.

You just post your email address in hosts then submit after deleting the one that don't work?
This won't work on network email.

Edited by petzl
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11 hours ago, petzl said:

You just post your email address in hosts then submit after deleting the one that don't work?
This won't work on network email.

I really don't know what you mean by this. All I'm doing is using the straightforward form at https://www.spamcop.net/mcgi?action=mhconf by entering the address I want to register and a name for the provider, and then clicking "Proceed" on the following page in order to send the test email. That worked in the past; now it fails.

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2 hours ago, Tesseract said:

I really don't know what you mean by this. All I'm doing is using the straightforward form at https://www.spamcop.net/mcgi?action=mhconf by entering the address I want to register and a name for the provider, and then clicking "Proceed" on the following page in order to send the test email. That worked in the past; now it fails.

You just click the tab "Mailhosts" scroll to bottom of page click "Add new hosts" type in your email address submit
SpamCop ill send a message to that address you click the link in that message and you mailhost will be set-up

Edited by petzl
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14 hours ago, Tesseract said:

Yes, that's exactly what I did. It failed with the error message I quoted in my first post.

Time to ask for help
https://spamcop.net/fom-serve/cache/401.html
 

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