07 September 2019

Uncommonly persistent spam from deltrino.duckdns.org

 
My personal email (not the one associated with this blog) has been swamped in recent weeks by a torrent of spammy emails.  Nothing dangerous or ominous as far as I can see.

All of them come from a single source: deltrino.duckdns.org, and for reasons I don't understand my Earthlink system does not allow emails from this source to be flagged as spam.

Obviously my email address got into this company's database.  IIRC, the same thing happened to me many years ago and I was able to escape, but I don't remember how.

Have any readers experienced the same problem?  Can anyone offer a suggested remedy?

11 comments:

  1. on the infected system, you might try clearing your browser history of everything?

    I-)

    ReplyDelete
  2. "duckdns" is a service that lets you point a sub domain at an IP address, so allowing you to eg run an email server from your home internet without having to pay for a fixed IP address. You probably can't block duckdns because it would potentially block other benign uses.

    Using a sledgehammer to crack a nut, and you probably don't want to do this if you're using Earthlink, but you could use Gmail as your mail client, get it to fetch your Earthlink mail but create a rule within Gmail to filter anything mentioning "deltrino", mark it as read and automatically delete it.

    Earthlink may already allow you to create rules like that - I dunno. In fact the email client you already use probably lets you do something similar. I only mention Gmail because it's what I've been using for years and I know how flexible it is.

    ReplyDelete
  3. a quick googling shows that that is a spam site. also, this might help: https://www.earthlink.net/protecting-yourself-from-spammers/ and https://www.earthlink.net/wp-content/uploads/webmail/help/earthlink/en_US/spamblocker/protection.html

    I-)

    ReplyDelete
  4. You could set up a filter for "from:*@*duckdns.org" with a rule to "mark as read, put into trash" or something like that.

    ReplyDelete
  5. Hey there, Something very similar happened to me several weeks ago on earthlink. It was infuriating, a lot of erectile dysfunction ads, (not appli-
    cable) and others including tiny air conditioners. I just kept flagging them
    as spam for a couple of weeks and recently noticed that they have stopped. I
    also tried the "feedback" portal. dianadragon

    ReplyDelete
  6. Just a thought.... Move your email to yahoo email, which allows you to sort by sender (gmail and others may do the same), then see if you can flag it as spam. It's a bummer, but that's the nature of our times. OR, conversely, you might contact your own email provider (you probably already have) to see if they can tell you how to flag it as spam. OR...you can just sort them together and delete them. OR...you might send a reply that says "Please take me off your recipient list. Thank you." Sometimes that actually works.

    ReplyDelete
    Replies
    1. I'll try your suggestion to unsubscribe. I normally avoid hitting that link on emails because it alerts the bot that it has found a real email address, but in this case I have nothing to lose in that regard.

      Delete
  7. I work in the corporate anti-spam industry. As someone mentioned already, duckdns.org's only purpose is to allow anyone to set up their own email (or other type of) server without purchasing a static IP address. Spammers aren't likely to set up their own email server using that service, but a lot of unknowledgeable tinkerers are. It's their unprotected mail servers that are the problem. The server at deltrino.duckdns.org is probably compromised and its owner doesn't even know it.

    Earthlink should definitely NOT safelist that domain. That's malpractice. If anything, mail from that domain should automatically raise suspicion. Also, Earthlink is unlikely to take action unless they get a ton of complaints. Don't bother using the unsubscribe link. It won't hurt, but it won't help in this case. Your best bet is to set up a rule in your email client, as someone else described, to discard all mail from that domain. The chance of any legitimate message coming from there is miniscule.

    ReplyDelete
  8. I use Earthlink Webmail and added deltrino.duckdns.org to blocked domains. Go to Spamblocker (edit). Choose "Settings" on next screen. Go to "Blocked Sender List" and add deltrino.duckdns.org to blocked sender or domain.

    ReplyDelete
    Replies
    1. I believe that may be the way I solved the problem when it first occurred years ago. But my "blocked senders" list is limited to 500 entries, so I have probably emptied that category a couple times since then. I've just added the duckdns to the list. Fingers crossed. And a huge thank-you if it works.

      Delete
  9. It wont work blocking no-reply@deltrino.duckdns.org in the Earthlink Spam blocker. I have added and confirmed it has been added and I continue to receive the emails daily, up to 30. I have added a rule in my Outlook to filter to my delete folder. This is the 1st spam that I have received that I have been unable to block through Earthlink.

    ReplyDelete

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