don't run vf anymore.  it can only find locally generated
issues, and it's usually wrong.  troff is not a virus.

Reference: /n/atom/patch/applied/novf
Date: Thu Feb 27 18:24:16 CET 2014
Signed-off-by: quanstro@quanstro.net

--- /mail/lib/qmail	Thu Feb 27 18:23:21 2014
+++ /mail/lib/qmail	Thu Feb 27 18:23:22 2014
@@ -1,7 +1,8 @@
 #!/bin/rc
 # qmail sender machine user...
 rfork s
-upas/vf | upas/qer /mail/queue smtp $* || exit 'qer failed'
+# upas/vf | upas/qer /mail/queue smtp $* || exit 'qer failed'
+upas/qer /mail/queue smtp $* || exit 'qer failed'
 if(~ $sysname ladd)
 	upas/runq -n 10 /mail/queue /mail/lib/remotemail </dev/null >/dev/null >[2=1] &
 exit ''