Most UNIX mail server support recipient delimiters behind a plus sign in email addresses.

[email protected]

In the above example "everything" could be any string, and the mail should get into the mail box of the user "user".

In postfix it is called recipient_delimiter:

http://www.postfix.org/postconf.5.html#recipient_delimiter

Is this possible with Exchange 2010?

Usecase1: The user can use different email addresses. He can use [email protected] for the communication with "fooshop". If he gets spam mail to this address later, he knows that fooshop has given his address to someone else.

Usecase2: We run a ticket system ( http://tbz-pariv.de/software/modwork/ ) and want to add send scans via email to the system. The network scanner can only modify the to-address and we want to insert the ticket type like this [email protected]