Hi Markus, On 2016-04-06 Wed 09:29 AM |, Markus Rosjat wrote: > Okay with some help from Christoph Viethen I did some testing and connfirmed > a few things > > - sendmail -bt gave me the right order of the mx to talk to > - I couldn't connect to the server with nc > - I couldn't ping the server > - nslookup gave me the correct IP to the server > > what really confuses me, and I only did that to have some other tool > checking if it can connect to the mx in question, is the fact that a site > like mxtoolbox can talk to the mx. >
They've probably got your IP address in a blacklist of some sort. Check your mail server's IP address on http://multirbl.valli.org/lookup/ (You might need to be delisted.) Otherwise, try traceroute (-I) from your mail server to theirs to find where the trail ends. Then contact them by phone/fax/freemail with your problem report. Cheers. -- Bizarreness is the essence of the exotic.
