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2 layers of filter
The file type blocking consist of the extension check and mime type check.
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| Info |
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Apache Tika is used to detect the mime type of the attachment uploaded. Refer to Supported Document Formats to find out which file types are supported. |
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2 filter modes
Attachments can be filtered based on:
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Allowlist | Denylist | ||||
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For example, extensions is configured to: jpg, png, gif, svg Only the following files will be allowed:
 | For example, extensions is configured to: exe Only the following files will be blocked:
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Recommended file types
You can use the following list of extensions:
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