Additional rules to utilize send connectors (ie. use this one for attachments)

In Exchange Server 2016 (or 2013) is there any way to create a rule of some sort that affects which send connector is used in certain scenarios?

For example, let's say I have three second connectors and two of these are smart hosts and I want to control "if attachment size is < 20 MB, use smart host 1", "if attachment size is between 20 MB and 50 MB use this smart host", and"if attachment size is > 50 MB, use this send connector to send directly from this mail server".

This is one of the tasks I'd like to complete amongst others but I'm not entirely sure if this can be done.

Thanks in advance!