Thunderbird -how to block this particular spam

Discussion in 'Firefox' started by tonyjeffs, Oct 25, 2006.

  1. No, that's not true. All spamassassin does is tag spam; it's up to you
    to decide what to do with it. Thunderbird's junk mail controls have an
    option to "trust spam headers" from spamasassin, and by selecting this,
    Thunderbird will toss spamassassin-tagged mail into the Junk folder
    where the JMC can learn it along with all the other stuff it catches.

    Between spamassassin and Thunderbird's JMC very little spam makes it
    through to my Inbox.
    John Thompson, Oct 26, 2006
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  2. Incorrrect. 'trusting' another applications measurements means that JMC
    DOESNT check the messsge, therefore nothing about it is added to the

    Every message that is caught by Spamassassin, is not checked by JMC.
    This will impact the current catch ratio as well as future catch ratios
    Mozilla Champion (Dan), Oct 27, 2006
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  3. tonyjeffs

    Dan C Guest

    Is there a "edit as new" feature? I am not seeing if so.

    Since part of this crap is a gif, I will just save it to
    disk, and cut and paste the rest. Of course the complete
    header will be different than the sender, so I don't see
    how this will accomplish much.

    Gee if we could just get you on their mailing list....

    Dan C, Oct 27, 2006
  4. Certainly is an 'Edit as New' feature, right there under the Message
    menu. i.e. select the message in question, then
    Message-->Edit Message as New

    Why cut part of it out? Send the entire thing.
    Mozilla Champion (Dan), Oct 27, 2006
  5. tonyjeffs

    Dan C Guest

    Didnt understand the concept. TESTSPAM on the way. Do
    you want receive them for a day or so?

    Doubt one or two will do you much good.

    Dan C, Oct 27, 2006
  6. We shall see, I suspect that my JMC will pick them up verbatim anyway
    Mozilla Champion (Dan), Oct 27, 2006
  7. Exactly as I suspected, they were picked up by my JMC with no problem
    whatso-ever. They and several others of various stocks are all of a
    similar type, JMC catches them quite well.
    Mozilla Champion (Dan), Oct 27, 2006

  8. Headers are NOT the only part of what Junk Mail Controls consider, JMC
    looks at the ENTIRE message. So you sending the message to me (which
    will change most of the headers) doesnt matter. The bulk of the message
    hasnt changed so it will still be picked up.

    Of course, if I had you in my address book, it would be exempt, but that
    isnt the case here, you dont have the spammer in your address book do you?
    Mozilla Champion (Dan), Oct 27, 2006
  9. tonyjeffs

    Dan C Guest

    Interesting. No spammer is not in address book.

    So what is your JMC doing different from mine? I have
    been marking this stuff as junk for a few months now to no
    avail. BTW, I am using version (20060909).

    What do you suggest?

    Thanks for your help, btw.

    Dan C, Oct 27, 2006

  10. As I mentioned previously, my suggestion is to restart your training.dat

    Tools-->Junk Mail Controls [Adaptive Filter]
    <Reset Training Data>

    Caveat: this WILL zeroize you training.dat back to nothing and will
    result in a temporary reduction in catch ratio to approx. 65%.
    This will improve over time and usually within a month be up to 90% or more.

    NB: Do NOT attempt to 'jump start' the training or 'add in' training on
    old message to speed up the process. Do NOT mark unknown messages as non
    spam. Do NOT use other filtering methods to augment JMC

    Simply: You get a spam, mark it as such. If JMC catches a good one,
    then un mark it. Thats its. nothing more.
    Mozilla Champion (Dan), Oct 27, 2006
  11. tonyjeffs

    Dan C Guest

    Thanks Dan.

    I appreciate.

    BTW like the word "zeroize"

    Dan C, Oct 27, 2006
  12. tonyjeffs

    Dan C Guest

    Where does the "training.dat" file reside? I did a
    Windows explore search on computer and it does not show up.

    Dan C, Oct 28, 2006
  13. Your training.dat is inside your profile.
    Mozilla Champion (Dan), Oct 28, 2006
  14. Note, Application Data is a hidden folder in Windows. When you do a
    system search, you must include hidden files and folders.

    Leonidas Jones, Oct 28, 2006
  15. I still disagree. The SA-tagged messages are tossed into the Junk
    filter, where I can review them. If I agree that they are spam, I tick
    the "Junk Status" flag and the JMC learns it just like any other message
    for which I tick the "Junk Status" flag.
    John Thompson, Oct 29, 2006
  16. That's fine, except for the messages that the JMC has no means of
    judging -- e.g. image spam with Bayes poison text. For messages such as
    that, spamassassin can process the image to find spam text inside and
    render a judgement based on that. The filters (JMC and spamassassin) are
    not mutually exclusive; that can act together to provide better coverage
    than either filter can do on its own.
    John Thompson, Oct 29, 2006

  17. Hogwash!

    As I said, here my JMC is catching 99.8% of ALL spam sent my way,
    inclusive of these image ones you are on about.

    In fact, I just got through convincing someone else to re-do their
    training.dat because these types of spams were continuatlly getting thru
    his. He reports MUCH better results now.

    Junk Mail Controls (JMC) WILL catch these types of spams. As I said, for
    every 200 spam sent to any of my accounts, I see one in my inbox.

    If your JMC isnt catching these spams, then perhaps its time to re-do
    your JMC training.
    Mozilla Champion (Dan), Oct 29, 2006

  18. IF you do that, then fine. But most people dont.
    Mozilla Champion (Dan), Oct 29, 2006
  19. tonyjeffs

    Dan C Guest


    Would you mind going through an explanation as to WHY the
    training.dat file needs to be reset?
    Why if it gets "too " big does it cease learning, or does
    it cease learning if it gets corrupted or...?

    Dan C, Oct 29, 2006

  20. It doesnt NEED to be reset unless it isnt performing as well as
    expected. Size of the file is irrelevent to performance - a 'small'
    training.dat (c300K) can perform as well if not better than a large
    (c1m) one (or vice versa).

    I never had to re-do my training because my JMC always performed well.
    But for others who were having problems with the catch ratio, or JMC not
    picking up on specific types of spams, restarting the training.dat went
    a long way to resolving the problem. If you are not having problems
    with JMC, then there is no requirement to re-do the training.dat
    Mozilla Champion (Dan), Oct 30, 2006
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