Re: AW: [exim] TLS and Outlook

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Autor: Mike Richardson
Data:  
Para: Steffen Heil
CC: exim-users, 'Mike Richardson'
Assunto: Re: AW: [exim] TLS and Outlook
On Sun, Aug 29, 2004 at 10:57:24AM +0200, Steffen Heil wrote:
> Hi
>
> > With 2K it doesn't work on a port other than 25. On 2002 it works for a
> while then seems to stop (randomly). On 2003 it works for longer but still
> seems to have problems. This is from a sample of about 200 Outlook users.
> Eventually I had to recommend using port 25 for all version of Outlook.
>
> > I'd like to know what 'random' in this case really means but I don't have
> time to do all the testing required.
>
> Is there anything I can do about it?
> Port 25 is not an option here, since it is blocked by our campus firewall,
> which is not under my control.


Hit Microsoft hard and fast with a major leaflet campaign?

We have port 25 open. Given that this is an authenticated service it
shouldn't pose a security risk really.

The problem really kicks in when people are sending via ISPs which block, or
transparently proxy, port 25. Then Outlook users are screwed from a security
point of view (forgive me for stating the obvious) because they just can't
use TLS no matter what.

If I had the time I'd be looking at testing Outlook, SSL and stunnel on
other ports because I believe that Outlook can manage that.

Mike

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