I have two accounts AA and BB (as an example). One of them is my main account (AA) and the other account (BB) is set in such a way that from that account incoming messages automatically are forwarded to my main account (AA) inbox. The only distinction is the column "Receiver". In that column when Receiver is "BB" then it is coming from that account. Now I like to see that message line automatically also in another color to better distinguish the messages. It happens quite often that I reply to the open message from account BB, using account AA. And I didn't want that. Moreover, the recipient sees a different email address in his/her mailbox. That causes confusion.

Is it possible that the message that is automatically forwarded (or sent) from another account, causing the message to appear in my inbox (AA) automatically (now only manually?) in the color that is for example set in the 'Label' menu? So in my In-box I see the messages of two accounts. And to distinguish it easier for me I like to give the message of the other account another color. Is it possible (to make that)?