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blturner

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I am evaluating Kerio and was surprised to find Spamcop set up as a blacklist in the default install.

My ISP had a recurring issue with Spamcop a few years back that caused them to get listed repeatedly because of out of office replies. This wasted many hours of my time.

I read through all of Spamcops FAQs and they knew that their policies did not match the RFCs and that they were intentionally causing false positives. They recommended that their list be used as a greylist to increase the spam score rather than an outright block.

I don't know if they have changed their policies but I refuse to use them at all.

Am I alone in my feelings?
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marook

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We have used them for over a year with no issues at all.

SpamCop = Block!

"a few years back.." is a LOOONG time in Spam world... Wink

But if you are not sure, simply change the rule to add score.. Smile

Regards,

Jakob Peterhänsel
Consultant - Humac A/S

Apple Certified Support Professional (ACSP)
Apple Certified Technical Coordinator (ACTC)
AppleSeed/CQF member since 1998
Kerio Messaging Partner
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subnet

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Same Here! Spamcop=Block
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freakinvibe

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Same here: Spamhaus + Spamcop = block, rest = add score. Works perfect for years.

Dexion AG - The Blackberry Specialists in Switzerland
https://dexionag.ch
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GlennK

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I've gotten some (but not too many) false positives, so I gave it a high score instead.
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blturner

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Thanks for the replies. I hope they cleared up the issue.
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blturner

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marook wrote on Wed, 30 June 2010 19:15


"a few years back.." is a LOOONG time in Spam world... Wink



I just had to chase down a false positive where SpamCop blacklisted one of Gmail's servers. Mad


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GlennK

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I've had plenty of major false positives from Spamcop that caused me to change it from block to a high score. Its generally reliable, but every once in a while you get something like that--gmail server etc.
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mombooks

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I give spamcop a really low score - I've had problems being blocked by them for a day here and there, just because our publicity dept. demands that we leave bouncebacks on for spam! The misdirected bounceback problem is a total PITA for me Mad
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TorW

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mombooks wrote on Mon, 07 March 2011 15:05
[...]just because our publicity dept. demands that we leave bouncebacks on for spam!

Then it's only fair that the internet community's counter-demand is that you spend some quality time in the SpamCop blacklist.
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mombooks

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perhaps, I'm just pointing out that for many, that's good enough reason to use spamcop for greylisting rather than black.
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freakinvibe

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You should make your Kerio server directly talk to the internet. This way there will be no bounce back messages, but the errors are handled directly during the SMTP session. Legimite senders will still get informed that there was a problem.

If you absolutely need a gateway inbetween, do anti-spam on the gateway and let the gateway know which are valid recipients.

Dexion AG - The Blackberry Specialists in Switzerland
https://dexionag.ch
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mombooks

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I think I'm missing something - we are connected directly through the firewall/router to the net on an IP reserved for our mail service. Which specific setting would remove the need for a bounceback?

Also, we're a book publishing company. The emails we're worried about are submissions from unknown entities and press opportunities from previously un-contacted individuals, so there's no way I can just use a whitelist...

Any help appreciated Confused
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freakinvibe

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What kind of bounce back do you need to send out? Non-existing user on yourside?

Dexion AG - The Blackberry Specialists in Switzerland
https://dexionag.ch
mombooks

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that as well as spam-rejection bounces - pretty much for anything that doesn't get put through to it's intended recipient!
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