Re: Now I could not download new emails because of a rapidly scrolling error message about ssl security, etc.
We recently added name validation for SSL certificates (server name <-> names defined in the cert, CN + alt names).
Please long press on the account -> account setup -> Next (to check settings).
The errors will be displayed in a dialog - won't scroll / fade away.
You'll see detailed info on what your server name is and what names were found in the certificate (and why there is no match).
It looks like (attached below) where "i.m.ru" is a "bogus" server name that is *not* found in the server's SSL certificate (which lists *.mail.ru, mail.ru).
And then you can either
- change to "SSL (accept any) / STARTTLS (accept any)" to bypass the new check (less secure, not recommended) or
- change server name to one of those found in the certificate and keep "SSL (strict) / STARTTLS (strict)" (more secure, recommended).