local-accept-delivery forked for delivery-local: npppp
delivery-local forked for transport-filter: npppp
process pppp running as transport filter: fd_write=dddd fd_read=dddd
-delivery-local forking for transport filter writer
-postfork: transport filter writer
+delivery-local forking for tpt-filter-writer
+postfork: tpt-filter-writer
cannot use sendfile for body: spoolfile not wireformat
writing data block fd=dddd size=sss timeout=0
>>>>>>>>>>>>>>>> Exim pid=pppp (tpt-filter writer) terminating with rc=0 >>>>>>>>>>>>>>>>
-delivery-local forked for transport filter writer: npppp
+delivery-local forked for tpt-filter-writer: npppp
process pppp writing to transport filter
copying from the filter
waiting for filter process