
Yahoo Mail
Gmail
Microsoft Outlook
Zoho Mail
FastMail
AOL Mail
Tutanota
ProtonMail
Advanced File Security Basic
Knox
R-Crypto
Exocet
Kruptos
ProxyCrypt
SSuite Agnot StrongBox Security
EDS (Encrypted Data Store)
I have been using yahoo mail for quite some time. However, I am not really impressed with their product or their improvements. Since 2013 I had issues regarding hacking, their advertisement placement is very frustrating, their platform is very slow and these factors are some to name a few. An alternative email platform that I would recommend and I am currently using is Milfence which offers an secure email service offering end to end encryption and a protected platform.
Gmail - Gmail is available across all your devices Android, iOS, and desktop devices. Sort, collaborate or call a friend without leaving your inbox.
Knox - Knox offers easy disk image encryption and comes with a built-in backup service.
Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
R-Crypto - R-Crypto is smart data security and disk encryption software that allows you to secure your sensitive information via strong encryption.
Zoho Mail - Zoho Mail is a secure, encrypted, and enterprise-ready email solution, a suite of apps tailor-made for your organization's needs.
Exocet - Exocet creates a Folder on your System.