I have done everything as Mac asked me for, and it worked well, until I tried to make a choice in mail, making a rule and this f.... mail is again asking for passwords to file etc. that finally was solved..... Where is a manual how to use this mail.

I have tried to create mailbox under my mail, with +, like junk, news, family etc. I see them when I write them and they just disappear - nothing is there!! So not possible to create rules or organize my mail. Somebody - tell me how to to this!!

My Mac is asking me all the time for new verifications and and when I just cannot be on that page and not be able to see/write/send my mail without this popping up all the time...

Frustration with Mac mail, that have lasted for two weeks since I got my new Mac Air, after my old one - that worked... Can somebody give proper instructions how to solve organizing the Mac mail!! I have tried different Youtube instructions and apple - but nothing works as they say..