Netpas Message alternatives

12 Windows apps in the same category as Netpas Message, ranked by what they have in common and by popularity.

• 
  Proton Mail Bridge

  Use Proton Mail with your desktop email client

  Open source 3.27.1 26.2K ↓ ★ 1.6K email, mail
• 
  Tuta Mail

  Tutanota is an email client with a strong focus on security and privacy that lets you encrypt emails on all your devices.

  Open source 362.261023.2 50.1K ↓ ★ 8K email
• 
  Mailspring

  Boost your productivity and send better email with Mailspring, the best mail client for Mac, Linux, and Windows.

  Open source 1.26.2 7.7K ↓ ★ 17.9K email, mail
• M
  Mozilla Thunderbird (en-US)

  Thunderbird is a free email application that is easy to set up and customize - and it's loaded with great features!

  Open source 159.0 email, mail
• 
  MFCMapi

  Provides access to MAPI stores to facilitate investigation of Exchange and Outlook issues and to provide developers with a sample for MAPI development.

  Open source 26.0.26291.01 5.7K ↓ ★ 984 email, mail
• 
  eM Client

  Fast email client with full Gmail, Hotmail and other services synchronisation. Best replacement for MS Outlook or Thunderbird. Free version for Home users.

  Free 11.0.1054 98.1K ↓ email, mail
• 网
  网易邮箱大师

  Efficient, powerful and cross-platform email client

  Proprietary 5.5.7.1008 email, mail, mailbox
• A
  AliMail

  Alibaba Mail for Windows

  Proprietary 2.15.2 email, mail, mailbox
• 
  Pebble

  A local-first desktop email client for people who want a calmer, more private inbox.

  Open source 0.1.5 ★ 598 email, mail
• P
  Postbox

  Postbox is the power email app for busy professionals, like you.

  Proprietary 7.0.56 17.5K ↓ email, mail
• 
  Claws Mail

  The user-friendly, lightweight, and fast email client

  Open source 4.1.1-1 11K ↓ email, mail
• 
  Prospect Mail

  Unofficial desktop client for Microsoft Outlook

  Open source 1.2.1 592 ↓ ★ 544 email, mail

Comparison

App	Licence	Version	Updated	GitHub stars	Chocolatey downloads
NNetpas Message	Proprietary	1.0	October 17, 2025	—	—
Proton Mail Bridge	Open source	3.27.1	October 8, 2026	1.6K	26.2K
Tuta Mail	Open source	362.261023.2	October 23, 2026	8K	50.1K
Mailspring	Open source	1.26.2	October 22, 2026	17.9K	7.7K
MMozilla Thunderbird (en-US)	Open source	159.0	October 27, 2026	—	—
MFCMapi	Open source	26.0.26291.01	October 19, 2026	984	5.7K
eM Client	Free	11.0.1054	October 8, 2026	—	98.1K
网网易邮箱大师	Proprietary	5.5.7.1008	April 8, 2026	—	—
AAliMail	Proprietary	2.15.2	March 28, 2026	—	—
Pebble	Open source	0.1.5	September 9, 2026	598	—
PPostbox	Proprietary	7.0.56	July 19, 2022	—	17.5K
Claws Mail	Open source	4.1.1-1	December 8, 2022	—	11K
Prospect Mail	Open source	1.2.1	April 1, 2026	544	592