I use Thunderbird as my email client for my Comcast webmail account on my Windows 8 computer. In "Copies & Folders" under Thunderbird's "Account Settings", I have checked "When sending messages, automatically: Place a copy in: 'Sent' Folder on:" my Comcast email account. But they never show up there. Is this because Comcast uses POP3 instead of IMAP? When I installed Thunderbird, I let it do its thing by itself; I did not know that I was supposed to select "POP3" and then configure it manually. Would this be why my Thunderbird "Sent" messages are not being copied to my Comcast "Sent" folder? Do I need to remove my current Comcast account within Thunderbird and start over? If so, is there any way to get the messages that I have already sent via Thunderbird copied to my Comcast "Sent" folder before I have to remove my account in Thunderbird and do it over? I don't want to save my messages to my local hard drive because every time I have ever lost an important email message, it was because my hard drive died. I know that I could use any webmail service to keep sent mail on remote servers and never use Thunderbird at all. But I need an email client to be able to send full webpages, rather than just links to webpages, to my email recipients and Thunderbird is the one that I have chosen. Thank-you to anyone and everyone who answers my questions. I truly appreciate your ability and willingness to spend your time and your effort to help a total stranger!!!!!!! -- Dandelion Jane "The LORD bless you and keep you...." P.S. — I made the same mistake about POP3 when I set up my Mom's Thunderbird account, so if this is really a big mistake, I need to know so that I can redo her Thunderbird account before she starts using it! I thank all of you again!