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services:e-mail_service:antispam_feedback [2011/03/28 17:42] marina |
services:e-mail_service:antispam_feedback [2021/12/09 12:44] giunta removed |
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To improve the spam filters we need a feedback by the users.\\ | 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 . | * **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. | + | * 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**. | + | Our anti-spam is the one by [[http://www.spin.it/|SPIN]]. It 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. | + | **Only e-mails with very-very-high spam score are blocked**. \\ |
+ | The others are delivered to the final user. | ||
\\ | \\ | ||
- | + | /** inizio commento | |
- | * 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 about [[webmail-squirrel:filter:spam-level| how to manage my e-mail spam filters using SQUIRRELMAIL ]]. | + | fine commento */ |
* See at the end of this page about some useful answers to questions about spam. | * See at the end of this page about some useful answers to questions about spam. | ||
\\ | \\ | ||
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When you find a:\\ | When you find a:\\ | ||
- | * **false positive** --mail tagged as SPAM or "[Maybe-SPAM]"-- which is NOT a real spam | + | * **false positive** --mail tagged as **[SPAM]** or **[Maybe-SPAM]** -- **which is NOT a real spam** |
or\\ | or\\ | ||
- | * **a spam** mail without "[Maybe-SPAM]" in the subject, | + | * **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**. | + | **please forward it, in attachment, to [[spam@sissa.it]]** **specifying in the //subject line//** if it is: a **FALSE POSITIVE** or a **SPAM**. |
- | The operators take the notifications and update the filters. | + | The SPIN 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. | + | The attachment is needed because it contains ALL 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 can find a [[services:e-mail_service:header-example|header example on the page: typical header]]. | You can find a [[services:e-mail_service:header-example|header example on the page: typical header]]. | ||
\\ | \\ | ||
- | You find below some instructions to correctly send us the complete header. | + | You find below some instructions to correctly send us the attachment. |
- | === Using PINE to send us the complete e-mail header ==== | + | === Using Thunderbird to send us the e-mail in attachment ==== |
- | + | ||
- | 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 an information message like: | + | |
- | * //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. | + | Open the message and then select the menu **Message** --> **Forward As** --> **Attachment** |
- | Now you can forward us your e-mail. | + | Now you can send your e-mail. |
\\ | \\ | ||
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**How Can I find out if an email that I am missing was blocked by Barracuda?**\\ | **How Can I find out if an email that I am missing was blocked by Barracuda?**\\ | ||
- | You find in the INBOX_spam the e-mails stopped by Barracuda because of spam. You receive an e-mail notification concerning e-mails stopped because of viruses. | + | You find in the Junk folder the e-mails stopped by Barracuda because of spam. You receive an e-mail notification concerning e-mails stopped because of viruses. |
- | In case you have more questions you can contact the SIS helpdesk@sissa.it and we will check the message log for you. | + | In case you have more questions you can contact the [[helpdesk@sissa.it|ITCS Helpdesk]] and we will check the message log for you. |