North American Network Operators Group

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Re: Hotmail blackholing certain IP ranges ?

  • From: Simon Waters
  • Date: Thu Apr 26 04:22:09 2007

On Thursday 26 April 2007 00:43, you wrote:
>
> A chap I know (for some reason) set his source port
> for queries to be port 53 and his DNS queries started to fail.

It was the default source port for DNS queries in some versions of BIND. And 
may well still be (I don't do those versions of BIND). The main reason for 
changes was that you need root privilege to bind to those ports in 
traditional Unix model, and people wanted to run DNS as a non-root user.

The more general bitbucketing of hotmail email is well known (try Google or 
Yahoo! search engines to find out more).

In general people should be advising against using Hotmail until Hotmail fix 
the bitbucketing issue, as encouraging it will undermine the reliability of 
email.

Presumably eventually (like AOL did) Hotmail will bitbucket some email 
important enough to make them realise the error of their ways, meanwhile 
Hotmail users get a service which is worth about what most of them pay for 
it.