I confess to not having researched this, mainly as I have no clue how to search the subject effectively. So, with great trepidation, I timidly squeak out this question:
Using postfix, is it possible to force a "re-addressing" of an email based on the sender of the message? To expand a bit, we envision retiring an existing email system, migrating but a small portion of the existing message store to "the cloud". Yet, there will still be a need to access the "old stuff" and, occasionally, to act upon it. So, I am looking for a way to allow such messages to be forwarded to the users new address (or to a surrogate, so to speak) and to no other. Even better (he dares, as his courage builds), have the messages sent to only one recipient, say gategu...@someplace.com and have a virtual lookup table (loose terminology perhaps) to re-address the mail based on the sender address. Simple? or simple minded?