Specifying Folders for Sent Mail

Question

Does anyone know of a utility that will allow me to specify the destination mailbox for sent items at the time of sending? My mailbox hierarchy is by client, and I spend a lot of time at the end of each day going through my Sent items and dragging them into the relevant client boxes. Would love to be able to specify this at the time of composing the mail.
I tried searching here, but couldn't see anything obvious.
Thanks.
David.

Answer 1

I don’t know of any limit to the number of rules that Mail can handle. Note also that Mail stops evaluating rules for a message after it’s been moved to another mailbox.
What you could do is implement the idea incrementally and see how it works, i.e. set up rules for a few mailboxes only, plus maybe one more for the rest, and handle the latter manually just like you’re doing now.
Something you should be aware of, if you aren’t yet, is that very time you modify a rule, Mail displays the following dialog box:
Apply rules
Do you want to apply your rules to messages in open mailboxes?
Many people click Yes without fully understanding what that really means or even reading it. It means that all the active rules will be applied to all the messages currently being displayed by Mail in the message list, regardless of whether the messages are selected or not. If in doubt, always answer No when presented with this dialog box. You can manually apply your rules to any selected messages later if you wish.