After I set up my IMAP and SMTP settings for my iCloud email account in Thunderbird I click my inbox and a prompt to donate comes up. I ignore that and focus on the second prompt to input my password. I had already went into my Apple iCloud account and created a third party account password. I thne input the password. It continually rejects that password. I am thinking that the prompt for a donation may be interfering. Also, prior to the password issues the app was running very slow. I went online and blocked Thunderbird from my contacts and that seemed to work. Could the issue be one of the inputs for my incoming and outgoing settings. I ran the test in IMAP and things looked good for the test. But always, the password fails. Please help.