You can block emails on your Mac if you don't want to get mail from a certain sender using the Mail app.
To block emails on iCloud, you'll need to use the iCloud website — you can't use the Mail app on your iPhone or iPad.
Microsoft Defender Safe Links help keep you from going to unsafe sites from links in your UBmail messages. If you click on a link in an email message that leads to what is perceived to be a dangerous ...