I get a similar message in every mail delivery error message I receive from Listserv: The enclosed mail file, found in the MUTEST reader and shown under the spoolid 6821 in the console log, has been identified as a possible delivery error notice for the following reason: mail origin is listed in "Filter=" list header keyword (or its default value for MUTEST). I do not have a Filter= keyword in any of my lists. Is this documented anywhere? Steve Moore - [log in to unmask]