On Wednesday 25 July 2007 15:46:40 Marlier, Ian wrote:
-----Original Message----- From: Michael Skiba [mailto:michael@michael-skiba.de] Sent: Wednesday, July 25, 2007 10:35 AM To: opensuse@opensuse.org Subject: Re: [opensuse] How to avoid duplicate large emails ?
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Am Mittwoch, 25. Juli 2007 14:47 schrieb Ronald Wiplinger:
I am looking for a way that people can "upload" the so important information and only send info about a new file stored
there (or just
let each friend subscribe via RSS).
Is something like that available or where to start?
bye
Ronald
Inside a network(e.g. a companies network) there was some sort of mail server which actually could do this(so not 200people have the same attachment in their mail boxes, but they open 1 file directly from the server).
But unfortunatly I can't remember the name, I don't think it was exchange, rather Groupwise or something like that maybe? (sorry :( )
It's Exchange, actually, though they may have picked up the feature from someone else. I know Exchange 2003 has that feature, not sure if old versions do.
GroupWise acts in this manner too. Large attachments (over 2K from memory) are stored centrally in the post office. Any users whose mailboxes reside in the same post office will be accessing the same file associated to the attachment when it is requested. AFAIK most mailservers will work in this fashion? From a storage point of view it's good practice to use one copy of the same file.
But -- it's a source of lots and lots and lots of database corruption, and doesn't work if there's even a single address from outside of the Active Directory forest.
It's not so much the AD forest limits in so much as which server the mailbox is on. If you have mailboxes over multiple servers, each server will store a copy of the mail + attachment in it's message database.
I don't know of an Open Source mail storage system that'll do that, though. It does seem like something that the mail DB products aimed at the corporate/ISP market (eg, Cyrus) might have, or might be working on if they don't. Been a while since I've hosted my own mail, though...
(Michael, sorry you got this twice.)
Assuming you posted to the sender directly - I can't help but smile at the apology given the subject of the thread... Going back to the original post though, you can't really *stop* people from sending you the same attachment again and again. It requires user education that a website or fileserver is the best place to put attachments like that. You might want to consider a CMS. I've used drupal in the past and it seems pretty easy to use. Alternatively, maybe a blog is all that is required in which case typepad or wordpress spring to mind. All of these will support RSS feeds. Jon PS Sorry for the butchering of the post at the top, but it was getting long (and someone top posted making it difficult to snip cleanly) -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org