Marc Perkel wrote:

> 
> Ian Eiloart wrote:
> 
>>
>>--On 18 October 2006 20:34:12 -0700 Marc Perkel <[EMAIL PROTECTED]> wrote:
>>
>>
>>>I just developed this for a guy who had only one email address for his
>>>domain. Instead of having several email addresses what I did was if he
>>>created an IMAP folder then the email address [EMAIL PROTECTED] would go
>>>directly into that folder.
>>
>>Now, all of a sudden he has more than one email address for that 
>>domain. Do you mean he had only one user account on your server?
> 
> 
> This person only has one user account for the domain with no plans to 
> ever have more. It's a domain for one person. But he's into IMAP and 
> likes the idea of direct folder delivery. So if he subscribes to some 
> new email list what he does is create a folder for that list and then 
> subscribe using the email address [EMAIL PROTECTED] The existence of 
> the folder makes the email address valid.
> 
> I added it to my personal domain and I like it. In my case I have other 
> accounts so it can onle be used with one account per domain. I first 
> process real accopunt and aliases then if nothing else matches it will 
> then start matching folders on my account. The "default" account that 
> gets the folder match is activated by creating a symlink "default" to 
> the directory of the person who gets the feature.
> 
> 

If one simply insists on a domain-wide differentiator, such as a 
prefixed/suffixed address format:

<folder/listname>.<real_user>@<domain.tld>

or

<real_user>.<folder/listname>@<domain.tld>

or <whatever_else_you_wish_to_parse_embedded_local_part>@<domain>.<tld>

Then *ALL* IMAP users may have this feature. No symlinks required.

CAVEAT: Best to NOT allow the router/transport code for this special structure 
to create folders that do not pre-exist.

ELSE you have a catch-all-builder that dictionery attacks may exploit.

- Though one can see uses for that as a 'feature' as well...

One might also wish to provide each user with a dynamically-generated alias as 
damage control against address harvesting.


Bill



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