If you delete any email via eg: webmail, this has no effect on emails already downloaded.įolders created in pop mail account do not appear on server as they only exist in your Profile folders. Option to leave emails on server or not has no effect on emails in Thunderbird profile. So any emails moved to other server folders by server or via webmail will not be seen nor downloaded. POP accounts can only see server Inbox and emails are downloaded and stored in Profile.