We sent a reply to you the same day you wrote in, on April 4. If your mailbox provider didn’t put it in your inbox then we’re very sorry indeed but we don’t control their operations. Our mail server delivered it to othem, though, of that there is proof in our log files. Ask them?

<[email protected]>: connect to
    securemail.harmonytribe.net[174.138.178.70]:25: Connection timed out

As said so many times to other correspondents here on this website, if you want a reply from us you’ve got to accept the fact that we are going to send it to you. No conversation, no progress.

You host your corporate domain on Google.

Feb 29 02:33:48 x postfix/smtp[1754322]: 906C87E505: to=<[email protected]>, relay=aspmx.l.google.com[142.251.12.27]:25, delay=2.2, delays=0.02/0.01/1.1/1.1, dsn=2.0.0, status=sent (250 2.0.0 OK  1709174028 q18-20020a635c12000000b005dc4eb22ed9si419918pgb.166 - gsmtp)

This typically results in mail from very infrequent senders (such as our support address) being spam-foldered or otherwise helpfully ignored.

If you wish to continue the conversation and eventually achieve a delisting, you must make sure you receive our responses. At least you had the decency to write to us from an address that appears to exist. We will not try to jump through any hoops to maintain communications with you.

$ host oatext.com.rhsbl.scientificspam.net
oatext.com.rhsbl.scientificspam.net has address 127.0.1.2
$ host -t txt oatext.com.rhsbl.scientificspam.net
oatext.com.rhsbl.scientificspam.net descriptive text "[OMICS] oatext.com is OMICS http://www.scientificspam.net/?p=437 [email protected] 20201125"

This has to do with Open Access Text Ltd, a UK company with company number 10976481, and their predecessor, the now-defunct Open Access Text Global Ltd, a UK company with company number 09001633, dissolved in November 2018.

This is in response to a website comment that was left earlier under one of our explanatory articles. The comment was briefly approved but upon second thoughts will be removed from public view.

We replied to your ticket about 28 hours ago. If your ticket system discards replies, that’s something we can’t help with. You have a reply, now go read it.

Apr 11 19:30:09 x postfix/smtp[22232]: CC4D713E055: to=<[email protected]>, relay=kvchosting.net[38.123.253.150]:25, delay=45, delays=0.07/0.02/20/24, dsn=2.0.0, status=sent (250 OK id=1ndzji-0002fv-Sq)

Somebody wrote in asking about a single IP listing that is a part of a /24. Our reply is that it’s an escalation listing against a customer of $PROVIDER that is somebody else but the people writing in, and would they please send $PROVIDER to talk to us directly. The response is worth quoting in its entirety. Needless to say, responses like this get no traction with us. Nobody owes this person anything as a result of their choices, and if they’d like to operate a blocklist with their own principles, they can always start a new one. There’s room for more.

Knock yourself out, folks.

From: Mail Delivery System <[email protected]>
<x@x>: host mx1.domain.example[127.5.6.7] said: 550
    5.1.1 <x@x>: Recipient address rejected: User unknown
    in virtual mailbox table (in reply to RCPT TO command)

If you do write to us, please at least bother doing it from an address that can be replied to. It’s very difficult to get the information you request to you otherwise.
The response that could not be delivered today is that your IP is included in a /24 listing that your Email Service Provider has allowed to go unattended for more than two years. Please talk to them about it.

Today marks the seventh anniversary of this project.
The decline in queries continues. In 2020, the IP address blocklist saw 1.459 billion queries, which is just short of four million a day, down from 1.7B the year before (15% less). The drop was even more marked for the domain name list, going from 1.4B to 457M (1.25M per day). If the same trend continues, by the end of 2021 we might consider the experiment concluded.