https://support.google.com/accounts/troubleshooter/6357590?hl=en
https://answers.microsoft.com/en-us/outlook_com/forum/all/microsofts-next-of-kin-process-accessing-emails/c848d768-58e8-428f-b10a-4fcd1f95c8d8
https://help.yahoo.com/kb/SLN2021.html