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Can I ask why a filtering rule blocked a legitimate message?

The specific details of our core filter rules are not something that our spam techs disclose. This is partially for security purposes, as a bad actor could use the information to get messages past the filters, but also because of agreements with filtering data partners that do not allow us to disclose the information.

Because most spam campaigns match multiple rules, disabling individual rules will not usually cause a significant impact on filtering performance.

See also: How do I disable a filtering rule?

Last updated January 16, 2023