As far as stopping the emails, there are probably a number of ways to do
this. Basically all you have to do is screw up the server's ability to reach
hotmail's servers for awhile. Adding entries to the hosts file so it can't
resolve the host names properly, or an entry to the route table so that any
packets going that direction get blackholed would do it without stopping
delivery to anyone else.
"SuneR" wrote:
> That is true, and that is what I am planning to do.
>
> Maybe I fail to explain myself, but I am more interested in where and how I
> can make this filter. Exactly how the filter should get triggered is for me
> to figure out, by looking at the log file. But I am rather clueless as to how
> to stop the mails form being sent after my filter is triggered.
>
> Right now Im thinking that a scheduled job that read the log every 5 minutes
> is the way to go, but as I wrote below, this is all very new to me, so there
> might be a better and cleaner way to do it. 
>
> I know the
>
> "Rob Campbell" wrote:
>
> > First thing to do is find and example of a log entry of a connection to
> > hotmail that resulted in a 421. Once you have that you can start writing
> > your filter.
> >
> > "SuneR" wrote:
> >
> > > We are in the process of getting a good mail reputation with hotmail.com, and
> > > hotmail.com wants us to stop sending them mail if they send us a 421 smtp
> > > code. That means we reached the limit, and that we should stop further
> > > sending to avoid getting a negative rep for that delivery.
> > >
> > > I am already looking into a solution with rules on an Exchange 2007 Edge
> > > Transport server, but so far no luck. But because I figure that no matter
> > > what, Powershell is a good approach to stop the mails from being sent to
> > > hotmail, that is why I ask here.
> > >
> > > What I have in mind is something like this:
> > >
> > > Make a powershell script that parses the logfile at intervals, and if it
> > > finds an smtp code 421 from hotmail, it will simply stop the smtp service on
> > > the server, I know that this means that mail to all other domains will be
> > > stopped also, but stopping mail to hotmail is top priority in this process,
> > > so a solution where the script stops the outgoing queue or enables a filter
> > > to stop outgoing mail to hotmail would be better but I dont know if thats
> > > easier/possible.
> > >
> > > However, I am not skilled enough to make this script without help - and I
> > > dont even know if this is a usable solution. So if anyone can give me some
> > > tips, a script that can do some or all of what I am looking for I would be
> > > very grateful!
> > >
> > > I know this is not an Exchange forum, but if someone knows about Exchange
> > > and knows of a better way to solve this, I am also very interested in
> > > learning more about it.