5. OpenMailBox
Next up on our list of free email that doesn’t require phone number is OpenMailBox, which is a really fast and easy email service that you can use for free of charge. However, initially, you will get only 5 GB of online storage capacity where you will be able to store your files. To be honest, 5 GB of storage is really lackluster compared to today’s standards. If you are willing to spend money, then you can increase your storage significantly. However, for anonymous email services, a free account will just do fine. You can finish registration in seconds and start using your email anonymously. While we are digging for more information, we only heard good things about this email service provider, so it gets our approval.