Mailspring

Mailspring 1.4

Free
Use a a single inbox for all e-mail accounts to boost productivity.
 
1.4.2 (See all)

Mailspring is a mail client application that lets you connect to multiple e-mail accounts. Using a single inbox for all e-mail accounts helps you get more done in less time. Mailspring supports every major mail provider—Gmail, iCloud, Office 365, Outlook.com, Yahoo!, and IMAP/SMTP—so you have a single, streamlined command center for all your messages.

Mailspring lets you create unlimited custom signatures and use them across all the accounts in your unified inbox.

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