Pagkugi

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Citadel and Pagkugi

Self-hosted groupware and BBS with mail, calendar, contacts, and web access.

At a glance

Mail, calendar, contacts, tasks, notes, mailing lists, BBS rooms, and web access in one server.

Where Pagkugi differs. A server-centric groupware system, not a local Maildir client.

Status
Active
License
GPL-3.0
Platforms
Linux, self-hosted
Storage
A server-side Citadel database; clients use IMAP, POP3, SMTP, the web interface, or the text client.
Website
https://www.citadel.org/
Source
https://github.com/citadel/citadel

Where Citadel is better

  • Self-hosted groupware with mail and calendar.
  • Web and text-mode clients over one server.
  • Mailing lists and BBS-style rooms.

Storage and ownership

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

Feature Pagkugi Citadel
Open local storage Yes No
Maildir as the live store Yes No
Works offline Yes No

Accounts and protocols

The servers and providers the client can talk to.

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

Reading

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

Feature Pagkugi Citadel
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 Citadel
Rich or HTML composition No Composes text/plain; Markdown composition is not released. Yes
Snooze or send later No No
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. Limited
Mailing-list actions Yes Yes
Command palette or keyboard-first No Actions live in explicit context menus. Limited
Open-thread work view Yes No

Security and privacy

Encryption, sender checks, and what leaves the machine.

Feature Pagkugi Citadel
PGP / S/MIME No Not built in. No
Phishing or sender checks Yes Limited
Remote content blocked Yes Limited
Built-in AI features No No assistant, by design. No

Platform and business

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

Feature Pagkugi Citadel
Graphical desktop app Yes No
Terminal interface No Limited Text-mode BBS client.
Mobile app No No
Web or self-hosted No Yes
Calendar, contacts, or groupware No Yes Calendar, contacts, tasks, notes, and rooms.
Plugin or extension system No Limited
Open source No Proprietary commercial software. Yes
No account with its maker Yes No

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