Mdaemon spam
This is a simple method for automatically routing spam messages to a designated "spam" folder. It can contain information about the spam score, and you can use your IMAP message filters to search for it and filter the message accordingly (assuming that you have the Spam Filter configured to continue delivering spam messages). This tag will be inserted at the beginning of the Subject header of all messages that meet or exceed the required spam score threshold. Refuse to accept message if an error occurs during SMTP scanningĬlick this option if you want a message to be refused when an error is encountered while it is being scanned during the SMTP process. If you have made any changes to the default SpamAssassin headers or specified custom headers in your local.cf file, those changes and additions will be ignored. However, only the default SpamAssassin headers will be added to messages when the queue-based scan is omitted. This can potentially significantly decrease CPU usage and increase the efficiency of the AntiSpam system. Click this option if you want MDaemon to omit the queue-based scan and treat the results of the initial Spam Filter scan as definitive. For messages that are accepted MDaemon will then perform another, queue-based, scan and treat the messages accordingly, based on their scores and your spam filter configuration. Skip queue-based scan on messages processed during SMTP sessionsīy default, MDaemon scans messages during the SMTP session to determine whether or not they should be rejected for having a spam score above the rejection threshold. For more information see, " SMTP rejects messages with scores greater or equal to XX (0=never) " above. This option is not available when you have your Spam Score rejection threshold set to "0", meaning that spam will never be rejected because of its score.
![mdaemon spam mdaemon spam](http://4.bp.blogspot.com/_JQS-uU3Eq7k/TJhf6q2Xd0I/AAAAAAAAAQU/nbR_6AMmofI/s320/spf4.gif)
Show heuristic results within SMTP session logsĬlick this option to log the results of heuristic processing during SMTP sessions to the SMTP session logs.Ĭlick this option to display heuristic processing results inline with SMTP session transcripts. It is extremely rare that a legitimate message will have a score that high.
![mdaemon spam mdaemon spam](http://4.bp.blogspot.com/_JQS-uU3Eq7k/TJMm0_zrzqI/AAAAAAAAAOc/DHapkaK48k0/s1600/DKIM5.jpg)
A rejection threshold of 10-15 will cause only messages that are almost certainly spam to be rejected.
![mdaemon spam mdaemon spam](https://i.ytimg.com/vi/iJSQkMT8xQE/maxresdefault.jpg)
For most people, however, a spam score threshold of 5.0 will catch most spam, with relatively few false negatives (spam that slips through unrecognized) and rarely any false positives (messages flagged as spam that are not). You should monitor the spam filter ' s performance over time and refine both the spam and rejection thresholds to suit your need. Any message with a spam score greater than or equal to 10.0 will be rejected by MDaemon during the delivery process. If you have the spam score threshold set to 5.0 and the rejection threshold set to 10.0, then any message with a spam score that is greater than or equal to 5.0 but less than 10.0 will be considered spam and handled according to the rest of your Spam Filter settings. The default setting for this option is "12.0". If SMTP scanning is disabled then a queue-based scan will still be performed on the messages after they are accepted. Use "0" in this option if wish to disable scanning during the SMTP process, and if you do not want MDaemon to reject any messages regardless of their scores. Otherwise, a message would never be considered spam and have the rest of the Spam Filter ' s options applied to it - it would simply be rejected during delivery. The value of this option should always be greater than the value of the " A message is spam if its score. When a message ' s spam score is greater than or equal to this score it will be rejected completely rather than proceed through the rest of the options and possibly be delivered. Use this option to designate a spam score rejection threshold. SMTP rejects messages with scores greater or equal to XX (0=never) Any message with a spam score greater than or equal to this amount will be considered spam, and then the appropriate actions will be taken based on your other Spam Filter settings.
![mdaemon spam mdaemon spam](http://help.altn.com/mdaemon/en/images/spam-filter_spam-filter.png)
The value that you specify here is the required spam threshold that MDaemon will compare to each message ' s spam score. None of the other Spam Filter options on this screen will be available until this option is enabled.Ī message is spam if its score is greater or equal to (0.0-500.0) Check this box to activate the heuristic message-scoring, spam filtering system.