UCEprotect blacklist

Question

Level 1

5 points

UCEprotect blacklist

Some of the emails I'm sending out are getting rejected. The postmaster@mac.com sends an email with the following explanation in it.

Reason: Remote SMTP server has rejected address

Diagnostic code: smtp;550-rejected because 17.133.186.214 is in a black list at dnsbl-1.uceprotect.net IP 17.133.186.214 is UCEPROTECT-Level 1 listed. See http://www.uceprotect.net/rblcheck.php?ipr=17.133.186.214

Remote system: dns;securemail-mx1.synaq.com (TCP|17.133.186.214|60826|196.35.198.158|25) (securemail-pl-mx25.synaq.com ESMTP Pinpoint)

Does anyone know what this means and what to do about it? I'm using an icloud.com email address.

Posted on Nov 8, 2017 7:12 AM

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Answer 1

Nov 27, 2017 12:58 PM in response to Defconjos

I have this problem every 2 or 3 weeks, on outgoing mail to different addresses.

A Google search suggests it's a money-making scam. The links in the UCEProtect message refer to "Apple Engineering". I've tried using alternate .mac and .me sending addresses , without success. Level 1 blacklisting apparently expires after 5 days, so I've resorted to waiting for that to elapse before resending.

This is not a satisfactory answer, but maybe someone else can offer a better one

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