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Aerion and Pagkugi

Lightweight Wails and Svelte desktop client inspired by Geary.

At a glance

Resource efficiency, unified inbox, threads, WYSIWYG compose, contacts, search, PGP/S/MIME, and extensions.

Where Pagkugi differs. A lightweight desktop client with a cache, not a Maildir-first text renderer.

Status
Active
License
Apache-2.0
Platforms
Linux, macOS, Windows
Storage
A local cache over IMAP/SMTP accounts.
Website
https://aerion.3df.io/
Source
https://github.com/hkdb/aerion

Where Aerion is better

  • A lightweight cross-platform desktop client.
  • WYSIWYG compose and PGP/S/MIME.
  • Provider presets and an extension system.

Storage and ownership

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

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

Accounts and protocols

The servers and providers the client can talk to.

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

Reading

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

Feature Pagkugi Aerion
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. Limited Calendar extension is alpha.

Writing and organizing

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

Feature Pagkugi Aerion
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. No
Tags or labels No Read state only; no general labels or tags. Limited
Mailing-list actions Yes No
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 Aerion
PGP / S/MIME No Not built in. Yes PGP and S/MIME.
Phishing or sender checks Yes Limited
Remote content blocked Yes Yes
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 Aerion
Graphical desktop app Yes Yes
Terminal interface No No
Mobile app No No
Web or self-hosted No No
Calendar, contacts, or groupware No Limited Contacts and an alpha calendar.
Plugin or extension system No Yes
Open source No Proprietary commercial software. Yes
No account with its maker Yes Yes

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