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--- services:e-mail_service:antispam_feedback [2011/03/28 17:31]
marina
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-====== Anti-Spam Feedback ======
-To improve the spam filters we need a feedback by the users.\\
-  * **False positives** are legitimate e-mail messages that are mistakenly blocked or tagged as spam by the anti-spam filter .
-  * On the other hand there are e-mails (**//false negatives//**) that pass the anti-spam filters and arrives on the users' inbox, but they are spam.
-----
-Our internal anti-spam [[antispam_filters#barracuda_spam_firewall|Barracuda Spam Firewall]] assigns to every incoming mail **a spam score value**.
-E-mails with values higher than 3.5 are probably SPAM messages and the anti-spam tags their "//subject line//"  with the identifier //**[Maybe SPAM]**//
-**Only e-mails with very-very-high spam score (over 9 points) are blocked by the Barracuda Spam Firewall**. \\
-The others --//allowed or tagged as probably spam//-- are delivered to the final user.
-\\
-  * See here about [[webmail-horde:filter:spam-level| how to manage my e-mail spam filters using HORDE ]].
-  * See here about [[webmail-squirrel:filter:spam-level| how to manage my e-mail spam filters using SQUIRRELMAIL ]].
-  * See here for [[services:e-mail_service:Some-definitions|some useful answers]] to questions about spam.
-\\
-----
-===== Anti-Spam Notifications =====
-When you find a:\\
-  * **false positive** --mail tagged as SPAM or "[Maybe-SPAM]"-- which is NOT a real spam
-or\\
-  * **a spam** mail without "[Maybe-SPAM]" in the subject,
-please forward it, with its complete header, to [[spam@sissa.it]] **specifying  in the //subject//** if it is: a **FALSE POSITIVE** or a **SPAM**.
-The operators take the notifications and update the filters.
-The COMPLETE headers are needed because they contain the information about the real sender and the e-mail delivery.
-We will take the notifications and update the filters, in order to make the filtering better.
-\\
-You find here a [[services:e-mail_service:header-example|typical header example]].
-\\
-You find below some instructions to correctly send us the complete header.
-=== Using PINE to send us the complete e-mail header ====
-You must enter/exit the //header mode// with the key **H**.
-When you enter the header mode The program shows at the bottom of the screen the [Display of full headers is now off.] or [Display of full headers is now on.]
-Now you can forward us your e-mail.
-\\
-=== Using Thunderbird to send us the complete e-mail header ====
-Open the message and then select the menu **//View//** --> **//Headers//** --> **//All//**: you will see on the message window the complete headers of the messages.
-Now you can forward us your e-mail.
-\\