Polymail
Airmail
Spark Mail
Thunderbird
Mailbird
Canary Mail
Apple Mail
eM Client
Axcrypt
VeraCrypt
Windows BitLocker
Cryptomator
AES Crypt
File Lock PEA
Folder Lock
TrueCrypt
AxCrypt is an award-winning encryption software that provides strong, simple and reliable encryption solution. Since its inception in 2001, it has grown to be one of the world’s most popular encryption software with over 20 million downloads worldwide. AxCrypt's mission is to provide encryption solutions to individuals and organizations in the simplest manner, so that we can ensure the convenient implementation and usage of our software for everyone.
It is available in English, French, German, Italian, Korean, Polish, Russian, Spanish, Swedish, Mandarin and more.
AxCrypt offers a Premium subscription (for individuals) and Business subscription (for companies) with a range of exclusive features like AES-256 encryption, Key sharing, Secured Folders, Cloud Storage Awareness, Password Management, File Wipe, Anonymous File Names, Password Generator, and more. See more about AxCrypt's subscription plans here: https://axcrypt.net/pricing
AxCrypt has recently released new content analyzing how different industries can implement AxCrypt Business, covering a range of industries from Technology to Education to Healthcare. You can read more here: https://axcrypt.net/industries
Polymail AxcryptAxcrypt might be a bit more popular than Polymail. We know about 1 link to it since March 2021 and only 1 link to Polymail. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Polymail - This one is a lot like Twobird but with a lot more features. It's a different type of email client. It's really cool, but the Windows version is just a web app. It's available on iOS as well. Source: over 2 years ago
With regard to encryption tools, I use AxCrypt, which is cross-platform, but isn't free in that form. It would though encrypt each file in-place, without need for a dedicated folder or vault and encrypted file will sync with OneDrive, via the standard sync client. It would also allow you to share encrypted files with others, without giving them your encryption password. Source: over 2 years ago
Airmail - Airmail is a lightweight and lightning fast mail client for Mac.
VeraCrypt - VeraCrypt is a free open source disk encryption software for Windows, Mac OSX and Linux.
Spark Mail - Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues
Windows BitLocker - This topic provides a high-level overview of BitLocker, including a list of system requirements, practical applications, and deprecated features.
Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!
Cryptomator - When it comes to saving your files on a cloud server, it is important to ensure the security of those files. Keeping your delicate files out of the wrong hands can save you a lot of time and hassle. Read more about Cryptomator.