[SOLVED] Spam

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chrisp8756
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[SOLVED] Spam

Postby chrisp8756 » Wed Mar 19, 2008 1:18 pm

Hello Everyone,

I have three different questions but first here is what I have,Fedora Core 7 with a fresh install of Zimbra 5.2.
1. Can I setup an additional spam filter training account from the admin page?
2. What happends if a user forwards a junk email to the default spam filter training account? Does that help the spam filter learn faster?
3. I have about 50 emails a day that are not being caught by the spam filter, most of them are in another lanaguage or the pill adds what can I do to stop those types of emails?
Thanks in advance


phoenix
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[SOLVED] Spam

Postby phoenix » Wed Mar 19, 2008 1:24 pm

[quote user="chrisp8756"]Hello Everyone,

I have three different questions but first here is what I have,Fedora Core 7 with a fresh install of Zimbra 5.2.
1. Can I setup an additional spam filter training account from the admin page?[/QUOTE]You don't need another training account.
[quote user="chrisp8756"]2. What happends if a user forwards a junk email to the default spam filter training account? Does that help the spam filter learn faster? [/QUOTE]That's a waste fo time, any mail sent to the Junk folder will already have a copy sent to the spam training account.
[quote user="chrisp8756"]3. I have about 50 emails a day that are not being caught by the spam filter, most of them are in another lanaguage or the pill adds what can I do to stop those types of emails? [/quote]Where do these emails end-up, in the Junk folder or the user's inbox?
Regards

Bill

Rspamd: A high performance spamassassin replacement

If you'd like to see this implemented in a future version of ZCS then please vote on Bugzilla entries 97706 & 108168
chrisp8756
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[SOLVED] Spam

Postby chrisp8756 » Wed Mar 19, 2008 1:37 pm

They end up in the users inbox.
phoenix
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[SOLVED] Spam

Postby phoenix » Wed Mar 19, 2008 1:40 pm

The user should highlight the spam email and then hit the Junk button, that will train the spam filetrs to recognise them in future. The user may need to do that on several messages but it will get trained. Have you made any changes to the tag/kill percentages in Zimbra and, if so, what are they?
Regards

Bill

Rspamd: A high performance spamassassin replacement

If you'd like to see this implemented in a future version of ZCS then please vote on Bugzilla entries 97706 & 108168
chrisp8756
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[SOLVED] Spam

Postby chrisp8756 » Wed Mar 19, 2008 1:42 pm

No changes done to the tag/kill.
phoenix
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[SOLVED] Spam

Postby phoenix » Wed Mar 19, 2008 1:57 pm

Change the Kill/Tag setting (you'll find it in the Admin UI Global Settings AS/AV tab) to 66/25 respectively and keep an eye on messages that get into the Junk folder to ensure you don't get any false positives. Monitor that for a few day and see what happens.
Regards

Bill

Rspamd: A high performance spamassassin replacement

If you'd like to see this implemented in a future version of ZCS then please vote on Bugzilla entries 97706 & 108168
mmorse
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[SOLVED] Spam

Postby mmorse » Wed Mar 19, 2008 2:31 pm

You might also want to look through Improving Anti-spam system - Zimbra :: Wiki & Configuring and Monitoring Postfix DNSBL - Zimbra :: Wiki
For instance, changing the /opt/zimbra/conf/zmmta.cf smtpd_reject_unlisted_recipients line to 'yes' helps a bunch in terms of cutting down emails to addresses you don't even have.
k7sle
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[SOLVED] Spam

Postby k7sle » Thu Mar 20, 2008 5:13 pm

[quote user="10330phoenix"]The user should highlight the spam email and then hit the Junk button, that will train the spam filetrs to recognise them in future. The user may need to do that on several messages but it will get trained. Have you made any changes to the tag/kill percentages in Zimbra and, if so, what are they?[/QUOTE]
This isn't a bad idea, except it doesn't work for users who are using outlook, thunderbird, or some non-Zimbra mail client. Back to the original question of "How do I tell Zimbra something is spam when I'm not using the web interface?"
mmorse
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[SOLVED] Spam

Postby mmorse » Thu Mar 20, 2008 10:37 pm

Forward a copy of the spam/junk (as an attachment) to spamAccount@domain.com

There's also this RFE: Bug">http://bugzilla.zimbra.com/show_bug.cgi?id=9532>Bug 9532 - IMAP/Outlook move to junk doesn't train anti-spam
k7sle
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[SOLVED] Spam

Postby k7sle » Thu Mar 20, 2008 11:54 pm

Thanks for the link to the bug. I'll use my spam-training account for now and call it good!
Cheers,
Chris

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