On Mon, 28 Nov 2016 09:01:41 -0500 btb <b...@bitrate.net> wrote: > On 2016.11.27 20.43, li...@lazygranch.com wrote: > > I should have mentioned the mail system is on a VPS and I'm the only > > user. And yes, trouble makers are on the Internet. > > well, this simplifies things quite of bit, of course. > > > What lead me to this was I did bzgrep "max auth" and noticed both > > smtp and submission was found. > > i hope you're not offering smtp auth on port 25.
Well I think I am based on this anvil entry. What option of postconf would show this? maillog.3.bz2:Nov 28 09:39:37 theranch postfix/anvil[75111]: statistics: max auth rate 20/60s for (smtp:41.216.208.250) at Nov 28 09:36:16 Regarding 587 and the firewall, one blocked thus far. Better than nothing I suppose. security.0.bz2:Nov 28 04:06:55 theranch kernel: ipfw: 565 Deny TCP 163.172.238.45:45853 107.170.248.198:587 in via vtnet0 <snip>
