On Tue, 10 Oct 2006, Beber wrote:

> So here is my question : Is there a notification driver or something like that
> I could start with. Like for example :
> 
> ham_delivery:
>   driver = appendfile
>   maildir_format
>   create_directory
>   directory = $home/Maildir
>   delivery_date_add
>   envelope_to_add
>   return_path_add
>   *announce_delivery*
>   group = mail

The very ancient Unix way of announcing email is called "comsat". It is 
implemented by a daemon to which the mailer sends a message (using UDP).
The daemon then writes "you have mail" to the user's terminal if she/he
is logged in. Exim has support for comsat - check the "notify_comsat"
option of appendfile. If you were to write a replacement daemon that 
accepted comsat-style messages, Exim can already support you.

Oddly enough, I looked at the comsat code only yesterday and thought "I
wonder if anybody uses this any more?"

-- 
Philip Hazel            University of Cambridge Computing Service
Get the Exim 4 book:    http://www.uit.co.uk/exim-book

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