How do I get off the dns blacklist?

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1.00/5 (1 vote)

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Hi,
I did some testing by sending an email and after a few times (probably exaggerated) I started getting the following message-

"Transaction failed. The server response was: The IP address of the sender (******) was found in a DNS blacklist database and was therefore refused."}

What I have tried:

try
{
    MailMessage msg = new MailMessage();

    msg.From = new MailAddress("***", "***");

    msg.To.Add("***");
    msg.IsBodyHtml = true;
    msg.Subject = subject1;
    msg.Body = body1;

    var client = new SmtpClient("***");

    client.Send(msg);
}
catch (Exception ex)
{
    Console.WriteLine(ex.Message);
}

Posted 16-Sep-20 10:07am

Member 14683862

Updated 16-Sep-20 10:27am

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Patrice T · Answer 1 · 2020-09-16T10:27:00

Quote:
How do I get off the dns blacklist?

This not a programming problem, it is a behavior (yours) problem, and you have been black listed for some time.
- You can wait until removed from blacklist.
- You can apologize to webmaster and ask remove from blacklist.
If you get removed from blacklist only to send mails again, it will stop again soon.

Member 14683862 · Answer 2 · 2020-09-16T20:26:00

Solution 2

Thank you,

- This comment has been around for several months ...

- Which webmaster should I ask for?
From the server where the email is located?

Posted 16-Sep-20 20:26pm

Member 14683862

Updated 16-Sep-20 21:14pm

Comments

Patrice T 17-Sep-20 3:17am

Use Have a Question or Comment? under Solution to discuss with author.

The webmaster of the server that blacklisted you.

Member 14683862 17-Sep-20 3:58am

I'm the webmaster. And when I do DEBUGGING on the site shows me this error in the code.

So maybe the list is on the server I host the site on?

Richard MacCutchan 17-Sep-20 3:17am

Ask at the site that is blacklisting you (the email recipient), they own the server that generates the message.

Member 14683862 17-Sep-20 3:59am

I'm the webmaster. And when I do DEBUGGING on the site shows me this error in the code.

So maybe the list is on the server I host the site on?

Richard MacCutchan 17-Sep-20 4:04am

The message is pretty clear: The IP address of the sender (******) was found in a DNS blacklist database and was therefore refused.

Member 14683862 17-Sep-20 5:22am

I'm a beginner, maybe for you it's clear ... I need a more detailed explanation

I just saw that the error message only appears when I run it in Visual Studio.
But when I upload to my server, there is no error message ...

Richard MacCutchan 17-Sep-20 6:24am

How are you the webmaster if you are a beginner? But, either way, this forum is for programming questions, you will need to do some research into how these lists are created and maintained.

Member 14683862 17-Sep-20 8:09am

Thank you so much for the goodwill