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hints:mail_forwarding [2021/03/03 07:17]
admin [Mail forwarding causes backscatter]
hints:mail_forwarding [2021/03/08 09:41] (current)
admin [Mail forwarding causes backscatter]
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   * [[hints:procmail_classic_linux|Procmail mail filtering in Classic Linux]]   * [[hints:procmail_classic_linux|Procmail mail filtering in Classic Linux]]
   * [[hints:procmail_directadmin|Procmail mail filtering in DirectAdmin]]   * [[hints:procmail_directadmin|Procmail mail filtering in DirectAdmin]]
-  * [[hints:example_procmailrc_file|Hint: example .procmailrc file]]+  * [[hints:example_procmailrc_file|Example generic .procmailrc file]]
  
 ===== Mail forwarding from within your control panel ===== ===== Mail forwarding from within your control panel =====
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 Almost all incoming mail includes some amount of spam. Our servers typically reject about 80–85% of all incoming mail because it is diagnosed with high confidence as spam. The 15–20% that is permitted to reach you includes some fraction that is likely spam. Mail forwarding as enabled within the Virtualmin or DirectAdmin control panel, or as enabled using a '' .forward '' file, will include some small amount of spam. Almost all incoming mail includes some amount of spam. Our servers typically reject about 80–85% of all incoming mail because it is diagnosed with high confidence as spam. The 15–20% that is permitted to reach you includes some fraction that is likely spam. Mail forwarding as enabled within the Virtualmin or DirectAdmin control panel, or as enabled using a '' .forward '' file, will include some small amount of spam.
  
-If the site that receives this forwarded mail detects spam and rejects it, that will become bounce that our servers will try to return to the original sender. But in most spam, the sender is forged. The bounce will therefore go to some innocent person. This is called [[backscatter]]. Excessive amounts of backscatter may be treated as a type of spam coming from our servers. This may cause our servers to be added to various black lists, causing outgoing mail from our servers to be blocked, and thus causing inconvenience to all users.+If the site that receives this forwarded mail detects spam and rejects it, that will become a delayed bounce that our servers will try to return to the original sender. But in most spam, the sender is forged. The bounce will therefore go to some innocent person. This is called [[backscatter]]. Excessive amounts of backscatter may be treated as a type of spam coming from our servers. This may cause our servers to be added to various black lists, causing outgoing mail from our servers to be blocked, and thus causing inconvenience to all users.
  
 In the [[:Classic Linux]] environment, if you use the **mailq** command and find any significant amount of queued mail that seems to be to you or from you, quite likely this is backscatter being generated by mail forwarding that you are doing. In the [[:Classic Linux]] environment, if you use the **mailq** command and find any significant amount of queued mail that seems to be to you or from you, quite likely this is backscatter being generated by mail forwarding that you are doing.
hints/mail_forwarding.1614784648.txt.gz · Last modified: 2021/03/03 07:17 by admin