Pagkugi

Preview site. This site is a preview: the hosted download is not connected yet. The project itself is real.

Compare ยท Desktop clients

Thunderbird and Pagkugi

General-purpose open-source desktop mail suite.

At a glance

Rich HTML, broad protocol support, calendar, address book, PGP/S/MIME, and a large extension ecosystem.

Where Pagkugi differs. Far more capable and extensible, but larger, and it renders HTML and bundles groupware that Pagkugi leaves to focused tools.

Status
Active
License
MPL-2.0
Platforms
Windows, macOS, Linux, Android, iOS
Storage
Native IMAP and POP3 with Maildir and mbox support.
Website
https://www.thunderbird.net/
Source
https://github.com/mozilla/releases-comm-central

Where Thunderbird is better

  • Rich HTML mail, calendar, contacts, and PGP/S/MIME are built in.
  • Native IMAP, POP3, Gmail, and Microsoft Exchange support.
  • A large extension and theme ecosystem.
  • Available on Windows, macOS, Linux, Android, and iOS.

Storage and ownership

Where the mail actually lives, and whether it survives the client.

Feature Pagkugi Thunderbird
Open local storage Yes Optional Maildir is supported; mbox is the default.
Maildir as the live store Yes Optional
Works offline Yes Yes

Accounts and protocols

The servers and providers the client can talk to.

Feature Pagkugi Thunderbird
IMAP and SMTP Yes Yes
POP3 No Not in the first release. Yes
Gmail account No Provider-specific account model is not supported. Yes
Microsoft / Exchange No Exchange-specific account model is not supported. Yes Exchange support was added in 2025.
JMAP No No

Reading

How a message is presented, and what happens to HTML.

Feature Pagkugi Thunderbird
In-app HTML rendering No Mail is converted to text instead. Yes
HTML converted to text Yes Yes
Conversation threading Yes Yes
Calendar invitations Limited A focused read-only viewer, not a calendar application. Yes

Writing and organizing

Composition, search, and the tools that shape a mailbox.

Feature Pagkugi Thunderbird
Rich or HTML composition No Composes text/plain; Markdown composition is not released. Yes
Snooze or send later No Limited Available through add-ons.
Full-text search Yes Yes
Custom incoming filters No The local filter engine is implemented but switched off. Yes
Tags or labels No Read state only; no general labels or tags. Yes
Mailing-list actions Yes Plugin Through add-ons.
Command palette or keyboard-first No Actions live in explicit context menus. Limited Keyboard shortcuts, not a command palette.
Open-thread work view Yes No

Security and privacy

Encryption, sender checks, and what leaves the machine.

Feature Pagkugi Thunderbird
PGP / S/MIME No Not built in. Yes
Phishing or sender checks Yes Yes
Remote content blocked Yes Yes
Built-in AI features No No assistant, by design. Limited Through add-ons, not the core client.

Platform and business

Where it runs, how it extends, and how it is sold.

Feature Pagkugi Thunderbird
Graphical desktop app Yes Yes
Terminal interface No No
Mobile app No Yes
Web or self-hosted No No
Calendar, contacts, or groupware No Yes
Plugin or extension system No Yes
Open source No Proprietary commercial software. Yes
No account with its maker Yes Yes

Compare another client

See every client side by side