# ThreadHashField

The reference field containing the thread hash values used to determine whether a match is a duplicate. This option de-duplicates indexed e-mail threads so that only the latest unique e-mails in a particular thread are retained. The `ThreadHashField` must be configured as a ReferenceType field.

Actions: | DREDUPLICATE
Type: | String
Default: |
Example: | `ThreadHashField=*/ThreadHash`
See Also: |

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