lines - don't check the (invalid) sbbs_t:useron.qwk settings for QWKE
support in this case (!).
If you've been seeing the occasional message with "Subject:" as the first
line followed by some @-kludge lines (e.g. @MSGID, @TZ, etc.) this would
be the cause: you have QWKE support enabled on your hub BBS (e.g. VERT),
which adds the "Subject:" kludge lines for subjects > 25 chars and when
importing QWK messages from a *hub*, these lines weren't (normally)
parsed/stripped.