I have my Thunderbird linked to a Yahoo email account. When I use Thunderbird to compose and send an email it never shows up in my Yahoo "Sent" folder. It does show up ok in my Thunderbird one. So, in easy instructions, how do I change settings etc so that my T'bird account fully synchronises with my Yahoo one. I have no other problems other than the Sent situation. I have already gone into the Copies & Folders under Account Settings and ticked the box about keeping automatically sending sent mail into my Yahoo mail account but this has not made any difference. Also, while writing, is it possible to change colour scheme etc on Thunderbird??