Weird use case: Sender based recipient rerite

[chibenwa]

A customer needs to forward all mails sent by a user to another one.

This is not the regular forward which forwards mail received by a user.

Use case: supervision of an automated mail process.

Today the only way to achieve this is to set the Forward mailet which do not scale.

If we encouter this more we would need to have a DB backed impem for this?

[chibenwa]

This is similar to postfix bcc maps

sender_bcc_maps

An implementation can propose:

• Add a new Mapping type for RRT SenderBasedForward
• Add a new webadmin interface to populate this alias type
• Write a mailet fir sender based forwards
  • Step 1: normalise sender to the actual user (ie applies aliases)
  • Step 2: Lookup forward addresses for the sender and add them as recipient of the email