When you email an update to an item, the subject and body of the email are added to the update, but the from address is missing.
This means that you do not know where the email was sent from.
Why should I care?
Users may be distributing the email for the update, and therefore (as all updates appear as the user who’s personal update email address this is) there is no way to differential the senders.
I propose that the update body should be more like this:
Subject line here
Email body here
Email update sent by email sender.
The new part is this bit at the end:
Email update sent by email sender.
As the email is being parsed anyway, adding the sender details to the update should be trivial, and would give more context.