I had a bit of a glitch 3 days ago when I was told the password was incorrect(I have been using the same for about three years). No matter how many times I tried it wouldn't allow it. The option was to change my password, which I successfully managed and was able to sign in. However, yesterday the same problem occured and I changed the password yet again. As I write everything seems O.K. but I'm wondering if it will last. What could have been the cause??
P.S. Is it imperative to sign out after each visit to my mail?