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  1. #1
    3 Star Lounger
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    My domain is spamming

    Hi.

    Despite being very careful where I put my email address and what software I put onto my laptop, my email domain has suddenly started spamming - I'm getting responses of failed email in my postmaster box where the sender was <randomcollectionofletters>@<domain>.co.uk.

    I've run a virus check on my machine, and also an anti-spam and anti-spy check (which I do regularly anyway) and I'm certain that I've not used any phishing sites, so I don't know how it started.

    More crucuially, though, how can I stop it?

    Thanks.

  2. #2
    Plutonium Lounger
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    Re: My domain is spamming

    This does not necessarily mean that the mails were really sent from your computer/domain. It is also possible that another computer , either an infected one or one belonging to a spammer, is spoofing your domain name as the sender of e-mails.

    Most firewalls (but not the one built into Windows XP) will check outgoing as well as incoming traffic, so they should protect your computer against being used as a spamming device. Do you have an active firewall, and if so, which one?

  3. #3
    3 Star Lounger
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    Re: My domain is spamming

    I'm 99% certain that it isn't coming from my PC - I have a virus checker and firewall installed and religously check the PC every week. I used to use Zone Alarm security suite coupled with Webroot Spy Sweeper, but ZA suite 6.5 is consistently crashing Outlook and other bits of my computer and so I have (in the last week, so it may or may not be a coincidence) been trialling AVG Internet Security - I am using the 7.5 beta - with a view to purchasing it.

    In reality, I think that these spam attacks are mimicking my domain from elsewhere - I can configure my email to reject messages that aren't to specific postboxes, but what I don't to happen is for the attacks to continue and my domain to be blacklisted so that real emails get rejected by my clients.

    What can I do?

    Cheers, in some frustration!

    Stuart

  4. #4
    Plutonium Lounger
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    Re: My domain is spamming

    Since AVG Security 7.5 includes a firewall, I agree that it is very improbable that the e-mails come from your own PC.

    I don't think there's much you can do about them being sent from another PC - it is outside your control. Perhaps you can find out from which IP address the mails are sent, but even then...

  5. #5
    3 Star Lounger
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    Re: My domain is spamming

    Hmm. It's what I suspected, but makes it very very irritating.

    What would be your recommended solution:

    a) let it carry on spamming, but reconfigure the ISP to reject non-mailbox mail
    [img]/forums/images/smilies/cool.gif[/img] change domain and release the old one

    Neither seems particularly nice. (a) is the easy option, but risks the domain being blacklisted, while ([img]/forums/images/smilies/cool.gif[/img] means I have to contact all my clients to advise them.

    Cheers & thanks.

    Stuart

  6. #6
    Plutonium Lounger
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    Re: My domain is spamming

    I agree that it's very irritating and that neither solution is attractive.

    If you're lucky, the spamming will stop after a while, but if it continues, [img]/forums/images/smilies/cool.gif[/img] is probably the best solution, tedious as it may be.

  7. #7
    3 Star Lounger
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    Re: My domain is spamming

    Many thanks for that - I'll leave it a bit and see what happens. In the meantime, maybe I'll just go and get that other domain anyway.

    Cheers,

    Stuart

  8. #8
    Plutonium Lounger
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    Re: My domain is spamming

    I had a few months worth of this nonsense last year, it stopped eventually.

    StuartR

  9. #9
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    Re: My domain is spamming

    FWIW - Check out my Posts <post#= 588,546>post 588,546</post#> and <post#= 589,064>post 589,064</post#> where I had similar problems.

    If your ISP supports SPF (Sender Policy Framework) then you can use OpenSPF.Org as an Anti-Forgery solution for making E-Mail safer.
    Scott

  10. #10
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    Re: My domain is spamming

    Hi StuartR,

    Approximately 3 years ago, a close friend had this problem and she chose to ignor it as well. Unfortunately, her ISP were <img src=/w3timages/censored.gif alt=censored border=0> idiots !!! THEIR policy was that if you spam and people complain, the user is FINED. After receiving over $1,000.00 (USD) in fines her account was suspended and ISP threatened to turn her over to a collection agency - EVEN THOUGH CONSTANT COMMUNICATIONS WITH THE ISP ABOUT HER DOMAIN NAME BEING HIJACKED FOR E-MAIL !

    She ended up suspending the domain name and going to a new ISP - MAJOR PAIN. I also had a problem similar to this but was lucky in that my ISP supported SPF (Sender Policy Framework) - See my <post#= 603,197>post 603,197</post#> to Stuart Reynolds. I do not know if UK ISP's support this or another similar type of function. But since I started to use SPF (OpenSPF.Org), my problems have dropped drastically.
    Scott

  11. #11
    Super Moderator jscher2000's Avatar
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    Re: My domain is spamming

    If you are using a professionally configured mail server, it is extremely unlikely that these messages have anything to do with you.

    As you know, anyone can use any arbitrary address as his From address by simply making a small configuration change in any mail client. Using spamming tools, this is easy to automate by mixing and matching From and To addresses. Because your mail server does not need to be involved in that conversation -- unless the recipient's mail server tries to verify the From address with your mail server -- I don't think there's anything you can do about it.

    (The above assumes that your mail server is not an "open relay." If it were, you would have great difficulty sending your own mail out as your server would be "black holed" very quickly.)

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