Re: Why cant someone confirm or deny this bug in entourage2004

From: Barry Wainwright (barry_at_mvps.org.INVALID)
Date: 05/18/04


Date: Tue, 18 May 2004 16:46:03 +0100

On 18/5/04 4:20 pm, in article
BCCF85F5.22F4F%see_signature_for_real_email@address.com, "Walt Basil"
<see_signature_for_real_email@address.com> wrote:

> On 5/18/04 7:56, in article BCCFE296.183B%martin@zedig.net, "Martin Zedig"
> <martin@zedig.net> wrote:
>
>> Its not my emailname (read my first post), its my username, eg account. I
>> cant change it since its my webhost that has this emailsettings (wich by the
>> way is common)
>
> I'm sorry I don't follow you.
>
> In every account I have ever seen, your "username" is the first part of your
> email address prior to the "@." In some cases, your username *is* your
> email account. Whether or not you use your username or your full email
> address, your mail host will interpret % as @.
>
> Having a % sign in your username is not at all common. I've been
> administrating email accounts for years, and I have never seen one with a %
> in it. Everything I have seen or read discourages it, for the reasons I
> listed in my previous post.
>
> The note that I posted is from my own personal domain that I offer email and
> web-based mail from. It's not something I make up, it's just there, ready
> for me to use, and it tells me that the following symbols will be
> interpreted by the mail host as an @ character (as your problem states):
> +
> ;
> %
>
> This is all I have to offer you by way of explanation. If you can't change
> that, and no one else offers you another solution, then perhaps you need to
> use another email client than Entourage. Personally, I think you'll
> encounter the same problem there as well, but you won't know unless you try
> it.
>
> Hope you find a solution.
>

The percent hack used to be fairly widely used, where a mailserver was
acting as a gateway to the outside world, in which case the user logged in
as username%realdomain@gatewaydomain, so that the mail server could then log
into the gateway as username@realdomain. (in most cases the '@gateway' part
of the login could be dropped as there would be a default value set up in
the mailserver which would be assumed in the event of the parameter being
missing)

However, this system was open to so much abuse (in terms of unauthorised
relaying and other spam activities) that this hack (it never was part of the
official SMTP RFCs) pretty soon got deprecated and has now virtually
disappeared altogether.

In fact, when the Realtime Blackhole Listing was the bane of many a sysads
life, accepting the percent hack was a sure-fire, one-step route to getting
listed.

I didn't think that anyone was still using it.

-- 
Barry Wainwright
Microsoft MVP (see http://mvp.support.microsoft.com for details)
Seen the Entourage FAQ pages? - Check them out:
  <http://www.entourage.mvps.org/toc.html>


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