Gradual decrease in Spam confidence level

Question

Hello,

I understand that SCL can be set using transport rules. However, I need to implement such an idea.

There are several mail rules and if a letter matches one of the rules, the SCL level increases, for example, by 1. If the second rule works, then by another 1. And so on.

That is, this is a complex filtering of special messages.

It is assumed that the set of matches from the patterns by which filtering is performed will help to catch the unwanted message.

1. If rule #1 is triggered, then add some tag "A"
2. If there is tag "A" and the letter corresponds to the conditions of rule #2, then set SCL 7 or 8.

Thank you.

Answer 1

Hi, @Mountain Pond

According to your description, the current transport rule can only set a fixed value, and the SCL auto-increment function cannot be implemented at present. If you want to increase or decrease SCLs, you may need to set multiple transport rules to continuously modify the SCL values based on your business requirements. Alternatively, you can consider using scripts to implement the corresponding functionality.

Based on the existing setup options for the transport rule, I set what you said about "add some tag A" to "Modify Message Header". The specific settings are shown in the following figure.

The information is added to the message header.

Next, set up a second transport rule, which triggers the second rule by identifying whether the above information is contained in the header of the message, and adjusts the SCL value to 7. The specific settings are shown in the following figure.

By following the above procedure, you can set the SCL value for a specific message. In this way, you can create a combination of multiple transport rules and conditions to implement the idea of gradually increasing the SCL.

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