TrulyMail
TrulyMail is a multiple email management program for those users who have to frequently sign in to multiple email accounts.
19 Alternatives To TrulyMail
Clyton
Clyton is an email client with advanced security and spam filtering features.
Foxmail
Foxmail is a free POP3 and IMAP4 e-mail client in English and Chinese for Windows systems.
GyazMail
GyazMail is an advanced level of an email account management system for the Mac OS X operating system users.
Microsoft Mail and Calendar
Mail and Calendar apps already built in Windows 10.
eM Client
eM Client is a Windows-based email client for sending and receiving emails, and managing calendars, contacts and tasks.