Sylpheed Alternatives [Page 2]

Geary is an email application built for GNOME 3.

Alpine is a fast, easy to use email client that is suitable for both the inexperienced email user...

The #1 email warming service to improve your deliverability by generating realistic and meaningful engagement to your emails. Easy-to-use solution to help you land in the main inbox instead of the spam folder.

Visit website paid $19.5 / Monthly (Pro)

K-9 is an opensource email client making it easy to chew through large volumes of email.

Gmail is available across all your devices Android, iOS, and desktop devices. Sort, collaborate or call a friend without leaving your inbox.

Native email app for email productivity.

Hiri is the best email client for Managers on Windows, Mac and Linux.

Zimbra Desktop is an offline client that lets you manage various email accounts in one desktop tool.  Zimbra mail, Yahoo! mail, Gmail, Outlook and any other work or personal email account using POP or IMAP is easy to set up in Zimbra Desktop.

Zoho Mail is a secure, encrypted, and enterprise-ready email solution, a suite of apps tailor-made for your organization's needs.

freemium $1.0 / Monthly (per user)

A fully fledged, free email server solution, an open source project (GPL v2).

Open Source

The Bat! is a secure desktop email client for Windows, designed to protect your correspondence against third-parties and to save your time.

The Bat! is an email program for Windows that protects the correspondence and empowers the users to handle large amounts of emails quickly and efficiently

The Nylas Cloud API powers your application with email, calendar & contacts features. Built-in features for better email, calendar, and contact management.

Balsa is an e-mail client for GNOME, highly configurable and incorporating all the features you...