Apps like Thunderbird: Free Your Inbox

Here are some great alternatives to Thunderbird: Free Your Inbox by Mozilla Thunderbird :
BirdBox
BirdBox
★4.8
BirdieSync for Thunderbird
BirdieSync for Thunderbird
★3.7
Mailfence secure private email
Mailfence secure private email
★3.8
BlackBerry Hub+ Inbox
BlackBerry Hub+ Inbox
★3.3
Total Email: One Mail Inbox
Total Email: One Mail Inbox
★3.9
Inbox Homescreen
Inbox Homescreen
★4.2
Inboxes - Multi Temp Email
Inboxes - Multi Temp Email
★4.0
Email Go: All email app
Email Go: All email app
★4.3
One Mail : Fast And Secure
One Mail : Fast And Secure
★4.7
Proton Mail: Encrypted Email
Proton Mail: Encrypted Email
★4.5
eM Client - Secure Email App
eM Client - Secure Email App
★3.3
All Email Hub
All Email Hub
★4.1
All Mail
All Mail
★4.2
OnMail - Encrypted email
OnMail - Encrypted email
★4.1
All Email Login
All Email Login
★4.0
Email Aqua Mail - Fast, Secure
Email Aqua Mail - Fast, Secure
★4.3