On Wed June 12 2019 14:14:11 Thierry de Coulon wrote:
> Since yesterday I can't connect kmail to my main mail server (the
> server of my own website). I can't send either, I can't connect to the
> website, I can't connect to it's cpanel, I can't ftp either.
> I *can* connect to the internet, I get mail from another website, it's
> really only "my" website.
> I use spamdrain as spamfilter and spamdrain can access my mail. So
> does gmail. My handphone can read my mail over data from the very same
> pop3 server.
> The provider says from his point of vue everything is working. I've
> reset the modem and the router. It's not my machine as every machine
> on my local network has the problem.
>
> What, on my local network, could block access to only my website (the
> provider's site is accessible)? Firewall is activated but nothing has
> been changed yesterday.
> The fact that only *one* site is having problem makes me think the
> problem is at the hosting site, but...

Hi Thierry,

If your smart phone can access your server and your LAN cannot a
possibility is that IPv6 is working and IPv4 is not, or vice versa.

Try "traceroute -4 ..." and "traceroute -6 ...".

--Mike