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hints:spam_virus_filtering_classic_linux [2021/01/16 17:41]
admin
hints:spam_virus_filtering_classic_linux [2021/03/06 12:19] (current)
admin [Where spam and viruses go]
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-====== Classic Linux hints: spam and virus filtering in Classic Linux ======+====== Spam and virus filtering in Classic Linux ====== 
 + 
 +[ [[:Classic Linux]]. ] 
 + 
 +(Analogous information will be made available in the near future for the [[:DirectAdmin]] environment.)
  
 Spam and virus filtering in the [[:classic_linux|Classic Linux]] environment is done in two different places. Spam and virus filtering in the [[:classic_linux|Classic Linux]] environment is done in two different places.
  
-First, when incoming mail arrives via SMTP, any mail that either contains an identifiable virus +First, when incoming mail arrives via SMTP, any mail that either contains a clearly identifiable virus (as diagnosed by **clamd**), or is spam with a high degree of certainty (as diagnosed by **rspamd**), is immediately rejected and never accepted. The sender will get a bounce explaining why the email was rejected. This is not under user control.
-(as diagnosed by **clamd**), or is spam with a high degree of certainty (as diagnosed by **rspamd**), +
-is immediately rejected and never accepted. This is not under user control.+
  
-Second, any mail that is accepted, which might or might not be spam, is spam-filtered via +Second, any mail that is accepted, which might or might not be spam, is spam-filtered via **SpamAssassin**. This is under control of the user, and can be switched on or off via the [[:Virtualmin]] control panel.
-**SpamAssassin**. This is under control of the user, and can be switched on or off via the +
-[[:Virtualmin]] control panel.+
  
-====== Navigation ======+====== Where spam and viruses go ======
  
-Some of the more useful pages are listed below. Please see the sidebar menu for more.+If you go to the menu:
  
-  * Current Pages, up-to-date in December 2020 +<tab>Virtualmin => Server Configuration => Spam and Virus delivery 
-    * [[:billing_system|Billing System (revised for 2020)]] + 
-    * [[:classic_linux|Classic Linux (revised for 2020)]] +you can see which folders are configured by default to receive spam and viruses. (You can also change these if you want to, but please exercise great caution, and make a screenshot before you make changes. Then you can restore any changes if needed.
-      * [[:ssh_restrictions|Classic Linux SSH Restrictions]] + 
-      * [[:procmail_classic_linux|Procmail mail filtering in Classic Linux]] +These spam and virus folders will be automatically created as soon as your first spam or virus is received. 
-      * [[:classic_linux_hints:spam_virus_filtering_classic_linux|Spam filtering in Classic Linux]] + 
-      * [[:cli_mua_classic_linux|Command-line mail user agents in Classic Linux]] +Note, however, that in our current system (see [[hints/classic_linux_mail_flow|Classic Linux mail flow]]) if an incoming email contains a known virus, it is immediately rejected and never reaches your account nor any virus folder. So in practice no virus-infected email should ever reach you or your virus folder. 
-      * [[:classic_linux_migration|Classic Linux migration procedure]] +===== View spam and virus folders in Roundcube webmail ===== 
-      * [[:File layout in Classic Linux]] + 
-      * [[:classic_linux_account_conversions|Classic Linux account conversions and updated billing]] +Roundcube webmail might not automatically show you the spam and virus folders. To make them visible, please do the following. 
-      [[:Classic Linux password changes]] + 
-    [[:DirectAdmin|DirectAdmin (revised for 2020)]] +There is a little icon near the top of the screen, a little to the right of your email address, that looks like three dots, vertically stacked. (It looks like this **⋮** on devices with the right fonts.Clicking on this will give you a pop-up menu from which you can click on Manage folders. Now you can enable or disable the folders you want to see, including the spam and virus folders. 
-      * [[:procmail_directadmin|Procmail mail filtering in DirectAdmin]] + 
-    * [[:alpine_mua|Command-line mail user agent Alpine]] +To actually access mail in these folders, click on the Mail icon at the left, then on a folder. 
-    * [[:mutt_mua|Command-line mail user agent Mutt]] + 
-    * [[:Plus addressing]] +===== Teaching the system to recognize spam or no-spam ===== 
-    * [[:ipv4_and_ipv6|ipv4 and ipv6]] + 
-    * [[:ssl_certificates|SSL certificates]] +  * [[hints:teaching_system_recognize_spam_not|Teaching the system to recognize spam or not-spam]] 
-    * [[:Classic Linux vs DirectAdmin]]+====== Navigation ====== 
 + 
 +Below is a small selection of useful pages. Please see the sidebar menu for many more.
  
 Some pages reside in a separate [[hints:sidebar|Hints]] menu. It you find yourself Some pages reside in a separate [[hints:sidebar|Hints]] menu. It you find yourself
 there, just follow the [[:start|Top]] link to get back to the main menu. there, just follow the [[:start|Top]] link to get back to the main menu.
 +
 +  * [[:billing_system|Billing System (revised for 2020)]]
 +  * [[:classic_linux|Classic Linux (revised for 2020)]]
 +    * [[hints:spam_virus_filtering_classic_linux|Spam filtering in Classic Linux]]
 +    * [[:File layout in Classic Linux]]
 +    * [[hints:classic_linux_password_changes]]
 +  * [[:DirectAdmin|DirectAdmin (revised for 2020)]]
 +  * [[:alpine_mua|Command-line mail user agent Alpine]]
 +  * [[:Plus addressing]]
 +  * [[:ssl_certificates|SSL certificates]]
 +  * [[:Classic Linux vs DirectAdmin]]
  
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hints/spam_virus_filtering_classic_linux.1610847699.txt.gz · Last modified: 2021/01/16 17:41 by admin