Sean Carolan wrote: >> $ ldd /usr/sbin/sendmail.sendmail | grep wrap >> libwrap.so.0 => /usr/lib/libwrap.so.0 (0x00319000) >> >> tcp_wrappers never sees the connection directly. sendmail handles it >> from start to end. > > Thanks for this info. I will set up an iptables rule to block this access. I'm confused. I'd expect the above symbol listing to show that sendmail is in fact using the libwrap library and it should be doing what the allow/deny files say. Regardless, the simple way to tell sendmail what you want to permit is to use the /usr/mail/access file. -- Les Mikesell lesmikesell at gmail.com