I was trying to VPN into work this weekend, and I could not connect to any servers at the office.
The problem was that cox (my ISP) was intercepting all of the DNS requests and sending me to their stupid search page, and the office DNS server never got a chance to answer.
The solution was found at http://www.wikihow.com/Opt-out-of-DNS-Redirection
Cox has decided to block all of my emails:
… while talking to mx1.west.cox.net.:
< << 554 fed1rmimpi01.cox.net IMP 126.96.36.199 is locally blacklisted
Lovely. And of course there is no way to get this block removed it would appear. Cox.net support told me to email firstname.lastname@example.org. Of course I CAN’T, since that email box doesn’t exist.
I have blocked *.cox.net in my blacklist: bl.deadbeef.com, perhaps that will help get their attention.
Update 9/25/06 20:57: Something changed, now emails are working again. From my conversation with Tier 2 support, they claim the correct resolution is to email email@example.com and firstname.lastname@example.org requesting to be removed from the blacklist. The support department also seems to be unaware of the blacklist and wants to blame your mail server.