Hi Can ask a quick question on this
When I create a new user on my server (the e-mail users do not have local
accounts)
I put the username in file named after the domain in a directory called
virtuals
the exim router does a check against the local parts and if the user exists
in the file under the relevant domain
it passes it then when it delivers it in the transport a new folder is
created by exim for that user
I have not had to create the folder in advance
PS
I do not have many users so this manual process works for me
it would be no fun for you guys with hundreds or thousands I guess you
would have databases to search
Regards
Hill
----- Original Message -----
From: "Marc Perkel" <marc@???>
To: "Stuart Gall" <stuart@???>
Cc: "exim users" <exim-users@???>; "Martin A. Brooks"
<martin@???>
Sent: Thursday, October 19, 2006 9:58 PM
Subject: Re: [exim] Really Cool Trick
>
>
> Stuart Gall wrote:
>>
>> On 19 Oct 2006, at 21:12, Martin A. Brooks wrote:
>>
>>> Marc Perkel wrote:
>>>
>>>> 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 folder@???. The existence of
>>>> the folder makes the email address valid.
>>>
>>> I fail to see the difference between this and delivery to an arbitrary
>>> shared folder. Unless I've massively misunderstood what you're doing
>>> it's neither a trick, nor cool, it's just a function of your IMAP
>>> server.
>>
>> What he is doing I thing is getting exim to automatically create a new
>> account for any local part it receives on the domains it servs.
>> That is quite clever.
>> However, Marc, there is a huge problem (Assuming I read this right).
>> When the domain gets its first dictionary attack (sending spam to
>> loads of random local parts)
>> You will create hundreds possibly thousands of new mail drops.
>>
>>
>
> Actually that isn't the case. The IMAP folder has to already exist so if
> someone does a dictionary attack then any local part that doesn't match
> a folder will be rejected as an unknown user. If the folder already
> exists them mail is delivered into that folder. If it doesn't exist
> isn't not created.
>
> Thanks for calling it clever. I'm really liking it.
>
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