I added details to first post about my configuration, hope that someone will understand where is the problem and will be so kind to help me
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| Spam filter, false positive... Please help... https://forum.linode.com/viewtopic.php?f=11&t=5018 |
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| Author: | sblantipodi [ Mon Feb 15, 2010 1:13 pm ] |
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I added details to first post about my configuration, hope that someone will understand where is the problem and will be so kind to help me
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| Author: | Stever [ Mon Feb 15, 2010 1:53 pm ] |
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Why are you asking us? Look at your logs and see what rules are rejecting mails you think you should be getting. Then adjust as you see fit. In my experience the two HELO checks you can doing will generate a lot of false positives. I also found that spamcop generated an occasional false positive, and rarely caught anything that spamhaus missed. There are no perfect solutions though. At the end of the day you will always have to balance the amount of spam coming through against the risk of false positives. You just have to decide your own personal preference as to how much of each you want to live with. |
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| Author: | Xan [ Mon Feb 15, 2010 1:59 pm ] |
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It's been my experience that the HELO checks work beautifully. And if an emailer sends a bad HELO, I'd be hard pressed to call that a false positive in any case. |
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| Author: | Stever [ Mon Feb 15, 2010 2:05 pm ] |
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Xan wrote: It's been my experience that the HELO checks work beautifully. And if an emailer sends a bad HELO, I'd be hard pressed to call that a false positive in any case.
You'd change your tune when emails from your wife's workplace weren't getting through 
Or maybe not... I agree that anyone who can't set their HELO greeting properly doesn't deserve to be running an email server, but I have had several cases where email I wanted to receive was rejected by HELO checks. That is how I define a false positive. |
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| Author: | sblantipodi [ Mon Feb 15, 2010 2:15 pm ] |
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I have disabled all the REJECT option in MAIN.CF file to make a try... The emails continues to go into spam folder... How this is possible? Please help. |
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| Author: | Stever [ Mon Feb 15, 2010 2:26 pm ] |
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sblantipodi wrote: I have disabled all the REJECT option in MAIN.CF file
to make a try... The emails continues to go into spam folder... How this is possible? Please help. Reject lines have nothing to do with a spam folder - they are two completely different things. If you reject a message, it goes nowhere - the sender may get a reject notice, but you will receive nothing. The spam folder is a result of your content filter. You haven't posted any details of it's settings, but that is where you should look. |
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| Author: | sblantipodi [ Mon Feb 15, 2010 2:34 pm ] |
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Thanks for your reply, I'm using amavisd-new with spamassassin, where I need to see ? |
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| Author: | sblantipodi [ Mon Feb 15, 2010 9:46 pm ] |
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please help
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| Author: | sblantipodi [ Wed Feb 17, 2010 12:47 pm ] |
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please help. |
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| Author: | kangaby [ Thu Feb 18, 2010 4:11 am ] |
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sblantipodi wrote: I'm using amavisd-new with spamassassin,
Get rid of those. Set proper postfix checks as detailed here and elsewhere. Live with the few SPAM emails that still get through. Then start again with those things if you MUST have them. Good luck. |
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| Author: | sblantipodi [ Thu Feb 18, 2010 8:34 am ] |
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kangaby wrote: sblantipodi wrote: I'm using amavisd-new with spamassassin, Get rid of those. Set proper postfix checks as detailed here and elsewhere. Live with the few SPAM emails that still get through. Then start again with those things if you MUST have them. Good luck. so your suggestion is to not use Spamassassin with amavsd-new check for spam? do you think that postfix is enough to trash spam with the lowest false postive? |
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| Author: | sblantipodi [ Mon Feb 22, 2010 7:49 am ] |
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bump... |
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| Author: | Xan [ Mon Feb 22, 2010 1:40 pm ] |
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Spam filtering isn't going to be perfect. |
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| Author: | Stever [ Mon Feb 22, 2010 3:31 pm ] |
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Xan wrote: Spam filtering isn't going to be perfect.
If it were, then forum messages like "bump" and "please help" would be automatically rejected. Oh wait, we were talking about email 
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| Author: | kangaby [ Tue Feb 23, 2010 6:27 am ] |
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Either you are worried about stuff going missing that shouldn't or you are worried about some SPAM getting through. You can't have it both ways. Well maybe you can, with an extreme amount of work, I don't know. If this is what you want, expect to do a serious amount of research on your own, that involes more than asking questions on a forum. I don't believe anyone here has a 5 minute answer to get this result. I know I don't. |
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