Hi I have a Pc with windows 10. I have recently installed Thunderbird and love it. I have set up four email accounts on PC iphone and ipad with the same passwords etc. When I delete something from ipad I still had to go to Pc and delete it there as well. I wanted to sync it so I wouldn't have to do this. I spent much time changing settings and now lo and behold two of my accounts are combined {my icloud acount and the one with local cable provider) so the emails are combined on one account, when I delete on Pc it syncs with ipad. I am happy with result but have no idea what I did to accomplish this! I would like to combine the other two accounts as well. Could anyone explain this to me. Thanks so much.