Microsoft Office Outlook
Commercial
Microsoft Outlook is a personal information manager from Microsoft.
Dialog Messenger
Free Personal
Dialog Messenger is a handy and feature-rich enterprise multi-device messenger available for server or cloud.
Polymail
Freemium
Polymail is an email application for OS X and iOS known for its clean interface and additional features atop the Gmail platform.
MailMate
Commercial
MailMate is an IMAP email client for macOS featuring extensive keyboard control, Markdown integrated email composition, advanced search conditions.
Compare Gmail with alternatives
Compare Microsoft Office Outlook and Gmail and decide which is most suitable for you.
Compare Dialog Messenger and Gmail and decide which is most suitable for you.