Yahoomail is a rapidly ageing app now. For a number of months, I have been unable to "Create" an email to send, despite multiple updates and despite deleting the app and reinstalling it a few times. I had to download Outlook app, and link it to my Yahoo account just to keep using my yahoo email. At some stage of my life, (in the next 2 years or so), I will stop using Yahoomail altogether. If you are a professional, go with Gmail or Outlook.