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How to remove "--" signature delimiter

Postbox 4

Go to Preferences | Options > Composition > Signatures and de-select the checkbox for "Add delimiter above the signature."

Postbox 3

To get Postbox to stop inserting the '--' before your signature, you need to set a hidden pref.

  • Open Config Editor.
  • Type pb.signatures.include_dashes into the "Filter" textbox.
  • Double-click on pb.signatures.include_dashes to change the value from true to false.