In outlook, if you are replying to an e-mail message in the inbox, outlook 
should ask you if you want to delete the message in the inbox and keep the 
sent one. This way, users efficiency will increase as you wont spend time 
cleaning you inbox.

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ozlem wrote:

> In outlook, if you are replying to an e-mail message in the inbox, outlook 
> should ask you if you want to delete the message in the inbox and keep the 
> sent one. This way, users efficiency will increase as you wont spend time 
> cleaning you inbox.

And when asked what was the original e-mail, how are you going to have a
copy?  Your reply won't contain a full copy of the original e-mail.
Anything in your reply, *if* you reply, is NOT the original e-mail.

In your rules, define a catch-all rule at the end of the rules list that
saves a copy of incoming e-mails (that survive your blacklist, anti-spam,
and unwanted message rules) into, say, a Received Items folder (which you
can make as a subfolder under your Sent Items folder - so a search on the
Sent Items folder that includes all subfolders will result in finding all
e-mails, in or out, related to a thread).  Any whitelist rules should also
perform the catch of a copy of new incoming e-mails into the Received Items
folder.  That way, only the whitelisted e-mails or those that survived your
other rules in the catch-all rule will have a saved copy in a folder other
than the Inbox.  After you get done reading an e-mail in your Inbox (or
wherever a rule may have moved it), you can optionally decide to delete that
e-mail knowing there is a safe copy in the Received Items folder.

Rules are only exercised as new e-mail is retrieved by Outlook.  They are
NOT executed automatically sometime later, like after you have already
received the e-mails and whenever you get around to reading them.  If you
want rules to execute separately of and after the mail poll, you will have
to execute them manually.

> ----------------
> This post is a suggestion for Microsoft, ...

There are far too many methods in how users *manage* their own message store
to be wasting time in the manpower to develop the code for trivial features.