- If "Mail-via= Distribute" then one person per 'To:' line, else - If the recipient is "local" to the LISTSERV which actually xmits the file (ie local node, plus optionally some installation-defined nodes which are connected via CTC), then only one person per 'To:' line, else - All the recipients for a given node are grouped together on the same 'To:' line, up to a limit of 5. Several output mailfiles are generated in this case, each of which has up to 5 recipients, until all the recipients have been processed. Eric