Please Read....if you are in the "kos.net"

If you are a user/customer in the "kos.net" Domain - I have now blocked all   your incoming and outgoing mail to/from the Rennlist Domain due to their   technical incompetence.

I would suggest that you look into an alternative ISP so that your mail is   now blocked from "kos.net" and you will *not* be able to send/receive from   Rennlist.com and/or this DOUBLE OPT-IN mail server from the rennlist.org   lists.

If you have any questions - please e-mail support@kos.net - it's not me, as   it's not my ignorance that caused this problem.