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Spam filter – setting up


Spam settings in the Control Panel

 
Spamfilter 1

1. Login to your Control Panel.

You can find the link for this in the email with your login details (http://login-X.hoststar.ch) (the X should be replaced by your server number).

Login:  Enter the web number "webX" (the X should be replaced by your personal web number) or your domain "yourdomain.ch".
Password: Enter your FTP password.
 
 
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2. In the navigation panel on the left, click "E-mail" and select "Spam filter" from the dropdown menu.

 
 
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3. For the mailbox whose settings you want to edit, click on the right on the notepad icon under the "Change" heading.

 
 
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4. In the following window you will now see all the possible settings that you can additionally modify in the spam filter.

Under "General Settings" you can alter the following options:

Required Score:
Specifies how strictly the spam filter should evaluate the emails. A low value filters more mails out but at the same time there is more chance of wrongly identifying a wanted email as spam. We recommend that this value should not be set lower than "4".

Rewrite Email Subject:
The character sequence defined in the entry field will be added in front of the subject of an email identified as spam. If, for instance, you are sent a spam mail with the subject "Diploma for sale", after successful identification as spam, the mail will be placed in your spam folder with the subject "****SPAM**** "Diploma for sale".

Report in the header:
If this option is activated, the complete report of the spam check will be inserted into the mail header so that you see the reasons for which the mail concerned was identified as spam.

Under "Add new address" you can manage both the Blacklist and Whitelist There are more details about these two features below.

 
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Spam settings in Webmail

Go to your Webmail access.

 
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1. Click on the item "Spam" either in the menu at the top right or in the "Webmail" menu on the left.

 
 
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2. If you have not yet made any changes to the spam filter via Webmail Organizer, you will find the following settings.

As long as nothing is changed here, the settings defined in the Control Panel (or the default settings) continue to be effective.
The following settings can be modified here:

Required Score:
Specifies how strictly the spam filter should evaluate emails. A low value filters more mails out but at the same time there is more chance of falsely identifying a wanted email as spam. We recommend that this value should not be set lower than "5: Aggressive".

Rewrite Email Subject:
The character sequence defined in the entry field will be added in front of the subject of an email identified as spam. If, for instance, you are sent a spam mail with the subject "Diploma for sale" and have previously entered the character sequence "****SPAM****" in the "Rewrite Email Subject" field, after successful identification as spam, the mail will be placed in your spam folder with the subject "****SPAM**** Diploma for sale".

Alter messages marked as spam:
Here you can determine whether only the report from SpamAssassin should be inserted in the mail header or if the message itself should be altered. With these last two options the mail is altered so that it is stated in the message itself that it has been identified as spam by the spam filter. The original message, without alteration by the spam filter, will be additionally attached to the message.

Skip RBL Tests:
With activation of this option, incoming emails will no longer be compared with public anti-spam databases on the Internet. We only recommend deactivation if mails that you actually want from certain senders are regularly blocked (this occurs sometimes, for instance, with hotmail.com or yahoo.com addresses, as these are often picked up by anti-spam databases.

 
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Whitelist (always accept certain senders)

If emails from people you know or certain newsletters are sometimes wrongly identified as spam, you can add the addresses of the senders of these to your Whitelist. Addresses in the Whitelist are automatically identified as "good", i.e. mails from these senders are never again placed into the spam folder.

You can add single addresses or all addresses in a specific domain to the Whitelist. To add single addresses, simply enter these onto the list in the form "sender@domain.extension". To add whole domains, enter these onto the list in the form "*@domain.extension".

To add entries to the Whitelist, proceed as follows:

In Control Panel

 
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Open the settings of the mailbox that you want to edit, as described in "Spam settings in the Control Panel"

Under "Add new address" enter the sender’s address of the person from whom you generally always want to receive all emails. Then check the "Accept" box and click "Add":

In the example, the address "hanna@yourdomain.ch" would now be added to your Whitelist. The green symbol at the beginning of the line indicates that the address is part of the Whitelist. A red symbol, however, indicates that the address is on your Blacklist.

 

In Webmail

 
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Open the spam settings as described above in "Spam settings in the Control Panel".

Then click on the button "Whitelist".

Here you can now enter all senders who should be added to your Whitelist. You can make entries in the Whitelist for both incoming mails and outgoing mails. Normally, entry for incoming mails is perfectly adequate (in the positive senders list). The individual entries should be separated with a normal line break.

 
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Blacklist (always refuse certain senders)

If you constantly receive spam or other undesirable emails from a specific sender or a specific domain, you can add the sender concerned to your Blacklist. Mails from this source will then always be immediately identified as spam and placed in the spam folder, even if the mail has otherwise passed the spam check.

To add entries to the Blacklist, proceed as follows:

In Control Panel

 
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Open the settings of the mailbox that you want to edit, as described in "Spam settings in the Control Panel".

Under "Add new address" enter the sender’s address from which you do not want to receive any more emails. Make sure the "Accept" box is checked and click "Add":

In this example, 2 entries are added to the Blacklist. For the domain "spamserver.com" all email addresses that end with this domain name are blocked. The red symbol at the beginning of the line indicates that the entry is in the Blacklist. A green symbol, however, indicates that the address is in the Whitelist.

 

In Webmail

 
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Open the spam settings as described above in "Spam settings in Webmail".

Then click on the button Blacklist".

Here you can enter all senders who should be added to your Blacklist. You can make entries in the Blacklist for both incoming and outgoing emails. Normally, entry for incoming mails is perfectly adequate (in the excluded senders list). The individual entries should be separated with a normal line break.

 
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Advanced settings

For experienced users there is also the possibility of defining user-configured rules for SpamAssassin. For the layman, the syntax of the SpamAssassin rules is very difficult to understand, so we recommend that you only undertake your own settings if you really know what you are doing.

To define your own rules, please proceed as follows:

The initial steps here are explained under the heading " Spam settings in the Control Panel".

 

1. Login to your Control Panel and open your spam settings.

The initial steps here are explained under the heading " Spam settings in the Control Panel".
 
 
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2. Under "Add New Address", click "For advanced users".



 
 
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3. In the window that then appears you see all previously activated spam rules. You can add some user-configured rules using the same syntax:

Please note that insertion of a faulty filter rule could partially or even entirely put the spam filter out of action.

You can find a detailed guide to the SpamAssassin syntax here.

 
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We will be happy to answer further questions:

Administrative Questions:
Email: order@hoststar.ch

Technical Questions:
Email: support@hoststar.ch
 
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