Thunderbird will see it as a new account and will want to make all messages available to you. If you have concerns, please give more information.

I tried to connect Thunderbird with my email account at Papamail but was unable to get it to work. I contacted Papamail support and they gave me instructions, but it still wouldn't connect, so they escalated it to an email specialist and will get back to me with a solution. In the mean time, I decided to move all 74,000 emails in the inbox in Thunderbird to a separate folder and that is taking a long time - like 5 hours to move 12,000 emails so far. I was thinking that Thunderbird does get connected, I'll have a clean inbox for the downloading emails from my account at Papamail. Am I doing the right thing regarding being a new account? Thanks for you help. Regards, Brooks

I am confused, in that you refer to Thunderbird as a separate entity from an email account, but it only works within an account. So, if you're moving messages with Thunderbird, then you already have an account. Is this a POP account or IMAP? More details are needed in order to give a better response. Thank you.