If you want to block an email address from appearing in your iCloud account on your iPhone, there are a few different ways to go about it.

  1. Open the Settings app on your iPhone and tap on iCloud.
  2. Under “Mail, Contacts, Calendars”, find the email address you want to block and tap on it.
  3. On the next screen, you’ll see a list of options that allow you to manage or delete the email address from your account.
  4. If you just want to block the email address from appearing in any of your devices’ Mail apps, tap on “Block this Address” and enter a password if required. ..