Airmail
Apple Mail
Mozilla Thunderbird
Spike
Shift
Hiri
Foxmail
Newton Mail (ex CloudMagic)
Microsoft Outlook
Postbox
Claws Mail
MailMate
eM Client
Unibox
Accu-Rate
Free version
Free
Free
Free
Free
Free
Free
Free
Free
Free
Desktop/Mobile Sync
Documents Preview
email-client-Mac: --- EMAIL CLIENT MAC
HTML
Label and Tags
Local Junk Folder
Snooze
Thread View
To-do
app-integrations: App integrations
calendar: Calendar
contacts: Contats
Encrypted Database
signature-management: Signature Management
unified-inbox: Unified Inbox
email-client-Mobile: --- EMAIL CLIENT MOBILE
Phishing filtering
Plugin
customizable-layout: Customizable Layout
RRS Reader
email-client-Windows: --- EMAIL CLIENT WINDOWS
snooze: Snooze function
Contact Management
Tracking
Third-Party integration