User Tools

Site Tools


hints:spam_virus_filtering_classic_linux

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
hints:spam_virus_filtering_classic_linux [2021/01/24 21:00]
admin [Where spam and viruses go]
hints:spam_virus_filtering_classic_linux [2021/03/06 12:19] (current)
admin [Where spam and viruses go]
Line 1: Line 1:
-====== 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.+
  
 ====== Where spam and viruses go ====== ====== Where spam and viruses go ======
Line 21: Line 21:
 These spam and virus folders will be automatically created as soon as your first spam or virus is received. These spam and virus folders will be automatically created as soon as your first spam or virus is received.
  
-Note. Email that is diagnosed with close to 100% certainty as containing spam or a virus will be immediately rejected by our server and never acceptedIf there is any doubthoweverthen the mail is accepted and handled based on the spam and virus delivery settings above.+Note, however, that in our current system (see [[hints/classic_linux_mail_flow|Classic Linux mail flow]]) if an incoming email contains known virus, it is immediately rejected and never reaches your account nor any virus folderSo in practice no virus-infected email should ever reach you or your virus folder. 
 +===== View spam and virus folders in Roundcube webmail ===== 
 + 
 +Roundcube webmail might not automatically show you the spam and virus folders. To make them visible, please do the following. 
 + 
 +There is a little icon near the top of the screena little to the right of your email addressthat 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. 
 + 
 +To actually access mail in these folders, click on the Mail icon at the left, then on a folder. 
 + 
 +===== Teaching the system to recognize spam or no-spam ===== 
 + 
 +  * [[hints:teaching_system_recognize_spam_not|Teaching the system to recognize spam or not-spam]]
 ====== Navigation ====== ====== Navigation ======
  
-Some of the more useful pages are listed below. Please see the sidebar menu for more.+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.
  
-  * Current Pages, up-to-date in December 2020 +  * [[:billing_system|Billing System (revised for 2020)]] 
-    * [[:billing_system|Billing System (revised for 2020)]] +  * [[:classic_linux|Classic Linux (revised for 2020)]] 
-    * [[:classic_linux|Classic Linux (revised for 2020)]] +    * [[hints:spam_virus_filtering_classic_linux|Spam filtering in Classic Linux]] 
-      * [[:ssh_restrictions|Classic Linux SSH Restrictions]] +    * [[:File layout in Classic Linux]] 
-      * [[:procmail_classic_linux|Procmail mail filtering in Classic Linux]] +    * [[hints:classic_linux_password_changes]] 
-      * [[:classic_linux_hints:spam_virus_filtering_classic_linux|Spam filtering in Classic Linux]] +  * [[:DirectAdmin|DirectAdmin (revised for 2020)]] 
-      * [[:cli_mua_classic_linux|Command-line mail user agents in Classic Linux]] +  * [[:alpine_mua|Command-line mail user agent Alpine]] 
-      * [[:classic_linux_migration|Classic Linux migration procedure]] +  * [[:Plus addressing]] 
-      * [[:File layout in Classic Linux]] +  * [[:ssl_certificates|SSL certificates]] 
-      * [[:classic_linux_account_conversions|Classic Linux account conversions and updated billing]] +  * [[:Classic Linux vs DirectAdmin]]
-      * [[:Classic Linux password changes]] +
-    * [[:DirectAdmin|DirectAdmin (revised for 2020)]] +
-      * [[:procmail_directadmin|Procmail mail filtering in DirectAdmin]] +
-    * [[:alpine_mua|Command-line mail user agent Alpine]] +
-    * [[:mail_user_agent_mutt|Command-line mail user agent Mutt]] +
-    * [[:Plus addressing]] +
-    * [[:ipv4_and_ipv6|ipv4 and ipv6]] +
-    * [[:ssl_certificates|SSL certificates]] +
-    * [[:Classic Linux vs DirectAdmin]]+
  
 ---- ----
 ---- ----
hints/spam_virus_filtering_classic_linux.1611550814.txt.gz · Last modified: 2021/01/24 21:00 by admin