aerc review

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

aerc is a free, open-source email client for technically oriented users who prefer keyboard-driven terminal workflows. It runs on Linux and macOS and supports multiple email accounts through IMAP or JMAP. Local mail can be handled through Maildir, Notmuch, and mbox backends, while outgoing messages use SMTP or sendmail. Vim-style keybindings, ex commands, email threading, MIME and attachment filtering, embedded terminal access, and an account configuration wizard give it a focused desktop email experience for users comfortable working from the command line.

Its strongest point is the breadth of email protocols and local storage options within a terminal interface. The client supports asynchronous IMAP/JMAP operation, threaded messages, MIME rendering and filtering, and shell tabs without moving away from the keyboard. GnuPG integration adds PGP signing, encryption, and verification. These capabilities make aerc a practical fit for users who maintain several accounts, work with local mail stores, or want email alongside terminal-based tools. The published feature set is centered on email rather than broader personal productivity workflows.

The trade-off is a narrow platform and workflow focus. aerc is distributed for Linux and macOS, with desktop coverage rather than mobile support. It does not provide the broader experience associated with unified inboxes, scheduling, or calendars, and offline mode is listed as a future plan. Choose aerc if terminal control, open-source software, multiple account support, flexible mail backends, and PGP matter more than a graphical interface or cross-device coverage. Users seeking mobile access, calendar features, or a fuller offline workflow should choose a different email client.

aerc pros and cons

• Where it wins
  • Supports multiple accounts with IMAP and JMAP
  • Works with Maildir, Notmuch, and mbox backends
  • Includes PGP signing, encryption, and verification via GnuPG
• Where it doesn't
  • Terminal-focused interface may not suit graphical email preferences
  • No mobile support or calendar workflow
  • Offline mode is listed as a future plan

aerc fact sheet, pricing and score →

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Last updated 7 Oct 2026 · How we research and update