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Get Started Free →CLI to manage emails via IMAP/SMTP. Use `himalaya` to list, read, write, reply, forward, search, and organize emails from the terminal. Supports multiple accounts and message composition with MML (MIME Meta Language).
| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-16 | ✗→✓ | ▲ Improved | — | — |
| case-09 | ✗→✓ | ▲ Improved | — | — |
| case-07 | ✗→✓ | ▲ Improved | — | — |
| case-15 | ✗→✓ | ▲ Improved | — | — |
| case-01 | ✗→✓ | ▲ Improved | — | — |
Himalaya is a CLI email client that lets you manage emails from the terminal using IMAP, SMTP, Notmuch, or Sendmail backends.
references/configuration.md (config file setup + IMAP/SMTP authentication)references/message-composition.md (MML syntax for composing emails)himalaya --version to verify)~/.config/himalaya/config.tomlRun the interactive wizard to set up an account:
bashhimalaya account configure
Or create ~/.config/himalaya/config.toml manually:
toml[accounts.personal] email = "you@example.com" display-name = "Your Name" default = true backend.type = "imap" backend.host = "imap.example.com" backend.port = 993 backend.encryption.type = "tls" backend.login = "you@example.com" backend.auth.type = "password" backend.auth.cmd = "pass show email/imap" # or use keyring message.send.backend.type = "smtp" message.send.backend.host = "smtp.example.com" message.send.backend.port = 587 message.send.backend.encryption.type = "start-tls" message.send.backend.login = "you@example.com" message.send.backend.auth.type = "password" message.send.backend.auth.cmd = "pass show email/smtp"
bashhimalaya folder list
List emails in INBOX (default):
bashhimalaya envelope list
List emails in a specific folder:
bashhimalaya envelope list --folder "Sent"
List with pagination:
bashhimalaya envelope list --page 1 --page-size 20
bashhimalaya envelope list from john@example.com subject meeting
Read email by ID (shows plain text):
bashhimalaya message read 42
Export raw MIME:
bashhimalaya message export 42 --full
Interactive reply (opens $EDITOR):
bashhimalaya message reply 42
Reply-all:
bashhimalaya message reply 42 --all
bashhimalaya message forward 42
Interactive compose (opens $EDITOR):
bashhimalaya message write
Send directly using template:
bashcat << 'EOF' | himalaya template send From: you@example.com To: recipient@example.com Subject: Test Message Hello from Himalaya! EOF
Or with headers flag:
bashhimalaya message write -H "To:recipient@example.com" -H "Subject:Test" "Message body here"
Move to folder:
bashhimalaya message move 42 "Archive"
Copy to folder:
bashhimalaya message copy 42 "Important"
bashhimalaya message delete 42
Add flag:
bashhimalaya flag add 42 --flag seen
Remove flag:
bashhimalaya flag remove 42 --flag seen
List accounts:
bashhimalaya account list
Use a specific account:
bashhimalaya --account work envelope list
Save attachments from a message:
bashhimalaya attachment download 42
Save to specific directory:
bashhimalaya attachment download 42 --dir ~/Downloads
Most commands support --output for structured output:
bashhimalaya envelope list --output json himalaya envelope list --output plain
Enable debug logging:
bashRUST_LOG=debug himalaya envelope list
Full trace with backtrace:
bashRUST_LOG=trace RUST_BACKTRACE=1 himalaya envelope list
himalaya --help or himalaya <command> --help for detailed usage.references/message-composition.md).pass, system keyring, or a command that outputs the password.| Case | Status | Duration (ms) | Turns | Tokens | Tool calls | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Without | With | Δ | Without | With | Δ | Without | With | Δ | Without | With | Δ | ||
case-17 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-16 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-09 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-07 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-08 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-14 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-15 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-19 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-20 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-18 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-05 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-21 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-22 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-13 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-01 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-04 | pass→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-12 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-11 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-02 | pass→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-10 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-03 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-06 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
DecimalAI ran this skill against gemini-3.6-flash twice over the same eval suite — once with the skill loaded and once without — and compared the two runs case by case. 22 cases were attempted. The headline lift of +27 percentage points is the difference between those two pass rates over the 22 comparable cases.
The per-case answers from this run were removed by the retention sweep, so the case table below shows the verdicts without the text either arm produced. The counts above were recorded at the time and are unaffected. Answers are now kept for 180 days.
Other measured skills in the registry, with their headline benchmark lift.