himalaya envelope list --account posteo --folder Archives.FOSS --page 2
- Multi-accounting configuration:
- interactive via wizard (requires
wizard
feature) - manual via TOML-based configuration file (see
./config.sample.toml
)
- interactive via wizard (requires
- Message composition based on
$EDITOR
- IMAP backend (requires
imap
feature) - Maildir backend (requires
maildir
feature) - Notmuch backend (requires
notmuch
feature) - SMTP backend (requires
smtp
feature) - Sendmail backend (requires
sendmail
feature) - Global system keyring for secret management (requires
keyring
feature) - OAuth 2.0 authorization flow (requires
oauth2
feature) - JSON output via
--output json
- PGP encryption:
- via shell commands (requires
pgp-commands
feature) - via GPG bindings (requires
pgp-gpg
feature) - via native implementation (requires
pgp-native
feature)
- via shell commands (requires
Himalaya CLI is written in Rust, and relies on cargo features to enable or disable functionalities. Default features can be found in the features
section of the Cargo.toml
, or on docs.rs.
Pre-built binary
Himalaya CLI can be installed with the installer:
As root:
curl -sSL https://raw.githubusercontent.com/pimalaya/himalaya/master/install.sh | sudo sh
As a regular user:
curl -sSL https://raw.githubusercontent.com/pimalaya/himalaya/master/install.sh | PREFIX=~/.local sh
These commands install the latest binary from the GitHub releases section.
If you want a more up-to-date version than the latest release, check out the releases
GitHub workflow and look for the Artifacts section. You should find a pre-built binary matching your OS. These pre-built binaries are built from the master
branch.
Such binaries are built with the default cargo features. If you want to enable or disable a feature, please use another installation method.
Cargo
Himalaya CLI can be installed with cargo:
cargo install himalaya
With only IMAP support:
cargo install himalaya --no-default-features --features imap
You can also use the git repository for a more up-to-date (but less stable) version:
cargo install --frozen --force --git https://github.com/pimalaya/himalaya.git
Arch Linux
Himalaya CLI can be installed on Arch Linux with either the community repository:
pacman -S himalaya
or the user repository:
git clone https://aur.archlinux.org/himalaya-git.git
cd himalaya-git
makepkg -isc
If you use yay, it is even simplier:
yay -S himalaya-git
Fedora Linux/CentOS/RHEL
Himalaya CLI can be installed on Fedora Linux/CentOS/RHEL via COPR repo:
dnf copr enable atim/himalaya
dnf install himalaya
Nix
Himalaya CLI can be installed with Nix:
nix-env -i himalaya
You can also use the git repository for a more up-to-date (but less stable) version:
nix-env -if https://github.com/pimalaya/himalaya/archive/master.tar.gz
Or, from within the source tree checkout:
nix-env -if .
If you have the Flakes feature enabled:
nix profile install himalaya
Or, from within the source tree checkout:
nix profile install
You can also run Himalaya directly without installing it:
nix run himalaya
Sources
Himalaya CLI can be installed from sources.
First you need to install the Rust development environment (see the rust installation documentation):
curl https://sh.rustup.rs -sSf | sh
Then, you need to clone the repository and install dependencies:
git clone https://github.com/pimalaya/himalaya.git
cd himalaya
cargo check
Now, you can build Himalaya:
cargo build --release
Binaries are available under the target/release
folder.
Just run himalaya
, the wizard will help you to configure your default account.
Accounts can be (re)configured via the wizard using the command himalaya account configure <name>
.
You can also manually edit your own configuration, from scratch:
- Copy the content of the documented
./config.sample.toml
- Paste it in a new file
~/.config/himalaya/config.toml
- Edit, then comment or uncomment the options you want
Proton Mail (Bridge)
When using Proton Bridge, emails are synchronized locally and exposed via a local IMAP/SMTP server. This implies 2 things:
- Id order may be reversed or shuffled, but envelopes will still be sorted by date.
- SSL/TLS needs to be deactivated manually.
- The password to use is the one generated by Proton Bridge, not the one from your Proton Mail account.
[accounts.proton]
email = "example@proton.me"
backend.type = "imap"
backend.host = "127.0.0.1"
backend.port = 1143
backend.encryption.type = "none"
backend.login = "example@proton.me"
backend.auth.type = "password"
backend.auth.raw = "*****"
message.send.backend.type = "smtp"
message.send.backend.host = "127.0.0.1"
message.send.backend.port = 1025
message.send.backend.encryption.type = "none"
message.send.backend.login = "example@proton.me"
message.send.backend.auth.type = "password"
message.send.backend.auth.raw = "*****"
Keeping your password inside the configuration file is good for testing purpose, but it is not safe. You have 2 better alternatives:
-
Save your password in any password manager that can be queried via the CLI:
backend.auth.cmd = "pass show proton"
-
Use the global keyring of your system (requires the
keyring
cargo feature):backend.auth.keyring = "proton-example"
Running
himalaya configure -a proton
will ask for your IMAP password, just paste the one generated previously.
Gmail
Google passwords cannot be used directly. There is two ways to authenticate yourself:
Using App Passwords
This option is the simplest and the fastest. First, be sure that:
- IMAP is enabled
- Two-step authentication is enabled
- Less secure app access is enabled
First create a dedicated password for Himalaya.
[accounts.gmail]
email = "example@gmail.com"
folder.aliases.inbox = "INBOX"
folder.aliases.sent = "[Gmail]/Sent Mail"
folder.aliases.drafts = "[Gmail]/Drafts"
folder.aliases.trash = "[Gmail]/Trash"
backend.type = "imap"
backend.type.host = "imap.gmail.com"
backend.type.port = 993
backend.type.login = "example@gmail.com"
backend.type.auth.type = "password"
backend.type.auth.raw = "*****"
message.send.backend.type = "smtp"
message.send.backend.host = "smtp.gmail.com"
message.send.backend.port = 465
message.send.backend.login = "example@gmail.com"
message.send.backend.auth.type = "password"
message.send.backend.auth.cmd = "*****"
Keeping your password inside the configuration file is good for testing purpose, but it is not safe. You have 2 better alternatives:
-
Save your password in any password manager that can be queried via the CLI:
backend.auth.cmd = "pass show gmail"
-
Use the global keyring of your system (requires the
keyring
cargo feature):backend.auth.keyring = "gmail-example"
Running
himalaya configure -a gmail
will ask for your IMAP password, just paste the one generated previously.
This option is the most secure but the hardest to configure. It requires the oauth2
and keyring
cargo features.
First, you need to get your OAuth 2.0 credentials by following this guide. Once you get your client id and your client secret, you can configure your Himalaya account this way:
[accounts.gmail]
email = "example@gmail.com"
folder.aliases.inbox = "INBOX"
folder.aliases.sent = "[Gmail]/Sent Mail"
folder.aliases.drafts = "[Gmail]/Drafts"
folder.aliases.trash = "[Gmail]/Trash"
backend.type = "imap"
backend.host = "imap.gmail.com"
backend.port = 993
backend.login = "example@gmail.com"
backend.auth.type = "oauth2"
backend.auth.client-id = "*****"
backend.auth.client-secret.keyring = "gmail-oauth2-client-secret"
backend.auth.access-token.keyring = "gmail-oauth2-access-token"
backend.auth.refresh-token.keyring = "gmail-oauth2-refresh-token"
backend.auth.auth-url = "https://accounts.google.com/o/oauth2/v2/auth"
backend.auth.token-url = "https://www.googleapis.com/oauth2/v3/token"
backend.auth.pkce = true
backend.auth.scope = "https://mail.google.com/"
message.send.backend.type = "smtp"
message.send.backend.host = "smtp.gmail.com"
message.send.backend.port = 465
message.send.backend.login = "example@gmail.com"
message.send.backend.auth.type = "oauth2"
message.send.backend.auth.client-id = "*****"
message.send.backend.auth.client-secret.keyring = "gmail-oauth2-client-secret"
message.send.backend.auth.access-token.keyring = "gmail-oauth2-access-token"
message.send.backend.auth.refresh-token.keyring = "gmail-oauth2-refresh-token"
message.send.backend.auth.auth-url = "https://accounts.google.com/o/oauth2/v2/auth"
message.send.backend.auth.token-url = "https://www.googleapis.com/oauth2/v3/token"
message.send.backend.auth.pkce = true
message.send.backend.auth.scope = "https://mail.google.com/"
Running himalaya configure -a gmail
will complete your OAuth 2.0 setup and ask for your client secret.
Outlook
[accounts.outlook]
email = "example@outlook.com"
backend.type = "imap"
backend.host = "outlook.office365.com"
backend.port = 993
backend.login = "example@outlook.com"
backend.auth.type = "password"
backend.auth.raw = "*****"
message.send.backend.type = "smtp"
message.send.backend.host = "smtp-mail.outlook.com"
message.send.backend.port = 587
message.send.backend.encryption.type = "start-tls"
message.send.backend.login = "example@outlook.com"
message.send.backend.auth.type = "password"
message.send.backend.auth.raw = "*****"
Keeping your password inside the configuration file is good for testing purpose, but it is not safe. You have 2 better alternatives:
-
Save your password in any password manager that can be queried via the CLI:
backend.auth.cmd = "pass show outlook"
-
Use the global keyring of your system (requires the
keyring
cargo feature):backend.auth.keyring = "outlook-example"
Running
himalaya configure -a outlook
will ask for your IMAP password, just paste the one generated previously.
This option is the most secure but the hardest to configure. First, you need to get your OAuth 2.0 credentials by following this guide. Once you get your client id and your client secret, you can configure your Himalaya account this way:
[accounts.outlook]
email = "example@outlook.com"
backend.type = "imap"
backend.host = "outlook.office365.com"
backend.port = 993
backend.login = "example@outlook.com"
backend.auth.type = "oauth2"
backend.auth.client-id = "*****"
backend.auth.client-secret.keyring = "outlook-oauth2-client-secret"
backend.auth.access-token.keyring = "outlook-oauth2-access-token"
backend.auth.refresh-token.keyring = "outlook-oauth2-refresh-token"
backend.auth.auth-url = "https://login.microsoftonline.com/common/oauth2/v2.0/authorize"
backend.auth.token-url = "https://login.microsoftonline.com/common/oauth2/v2.0/token"
backend.auth.pkce = true
backend.auth.scopes = ["https://outlook.office.com/IMAP.AccessAsUser.All", "https://outlook.office.com/SMTP.Send"]
message.send.backend.type = "smtp"
message.send.backend.host = "smtp.mail.outlook.com"
message.send.backend.port = 587
message.send.backend.starttls = true
message.send.backend.login = "example@outlook.com"
message.send.backend.auth.type = "oauth2"
message.send.backend.auth.client-id = "*****"
message.send.backend.auth.client-secret.keyring = "outlook-oauth2-client-secret"
message.send.backend.auth.access-token.keyring = "outlook-oauth2-access-token"
message.send.backend.auth.refresh-token.keyring = "outlook-oauth2-refresh-token"
message.send.backend.auth.auth-url = "https://login.microsoftonline.com/common/oauth2/v2.0/authorize"
message.send.backend.auth.token-url = "https://login.microsoftonline.com/common/oauth2/v2.0/token"
message.send.backend.auth.pkce = true
message.send.backend.auth.scopes = ["https://outlook.office.com/IMAP.AccessAsUser.All", "https://outlook.office.com/SMTP.Send"]
Running himalaya configure -a outlook
will complete your OAuth 2.0 setup and ask for your client secret.
iCloud Mail
From the iCloud Mail support page:
- IMAP port =
993
. - IMAP login = name of your iCloud Mail email address (for example,
johnappleseed
, notjohnappleseed@icloud.com
) - SMTP port =
587
withSTARTTLS
- SMTP login = full iCloud Mail email address (for example,
johnappleseed@icloud.com
, notjohnappleseed
)
[accounts.icloud]
email = "johnappleseed@icloud.com"
backend.type = "imap"
backend.host = "imap.mail.me.com"
backend.port = 993
backend.login = "johnappleseed"
backend.auth.type = "password"
backend.auth.raw = "*****"
message.send.backend.type = "smtp"
message.send.backend.host = "smtp.mail.me.com"
message.send.backend.port = 587
message.send.backend.encryption.type = "start-tls"
message.send.backend.login = "johnappleseed@icloud.com"
message.send.backend.auth.type = "password"
message.send.backend.auth.raw = "*****"
Keeping your password inside the configuration file is good for testing purpose, but it is not safe. You have 2 better alternatives:
-
Save your password in any password manager that can be queried via the CLI:
backend.auth.cmd = "pass show icloud"
-
Use the global keyring of your system (requires the
keyring
cargo feature):backend.auth.keyring = "icloud-example"
Running
himalaya configure -a icloud
will ask for your IMAP password, just paste the one generated previously.
- pimalaya/himalaya-vim, a Vim plugin sitting at the top of Himalaya CLI
- dantecatalfamo/himalaya-emacs, an Emacs plugin sitting at the top of Himalaya CLI
- jns/himalaya-raycast, a Raycast extension for Himalaya CLI
- pimalaya/himalaya-repl, an experimental Read-Eval-Print-Loop variant of Himalaya CLI
How different is it from aerc, mutt or alpine?
Aerc, mutt and alpine can be categorized as Terminal User Interfaces (TUI). When the program is executed, your terminal is locked into an event loop and you interact with your emails using keybinds.
Himalaya is also a TUI, but more specifically a Command-Line Interface (CLI). There is no event loop: you interact with your emails using shell commands, in a stateless way.
Additionaly, Himalaya CLI is based on email-lib
, which is also part of the Pimalaya project. The aim is not just to propose a new terminal interface, but also to expose Rust tools to deal with emails. Anyone who knows Rust language can build his own email interface, without re-inventing the wheel.
How to compose a message?
An email message is a list of headers (key: val
) followed by a body. They form together a template:
Header: value
Header: value
Header: value
Body
Headers and body must be separated by an empty line.
Here a non-exhaustive list of valid email message template headers:
Message-ID
: represents the message identifier (you usually do not need to set up it manually)In-Reply-To
: represents the identifier of the replied messageDate
: represents the date of the messageSubject
: represents the subject of the messageFrom
: represents the address of the senderTo
: represents the addresses of the receiversReply-To
: represents the address the receiver should reply to instead of theFrom
headerCc
: represents the addresses of the other receivers (carbon copy)Bcc
: represents the addresses of the other hidden receivers (blind carbon copy)
An address can be:
- a single email address
user@domain
- a named address
Name <user@domain>
- a quoted named address
"Name" <user@domain>
Multiple address are separated by a coma ,
: user@domain, Name <user@domain>, "Name" <user@domain>
.
Email message template body can be written in plain text. The result will be compiled into a single text/plain
MIME part:
From: alice@localhost
To: Bob <bob@localhost>
Subject: Hello from Himalaya
Hello, world!
Email message template body can also be written in MML. The MIME Meta Language was introduced by the Emacs mml
ELisp module. Pimalaya ported it in Rust.
A raw email message is structured according to the MIME standard. This standard produces verbose, non-friendly messages. Here comes MML: it simplifies the way email message body are structured. Thanks to its simple XML-based syntax, it allows you to easily add multiple parts, attach a binary file, or attach inline image to your body without dealing with the MIME standard.
For instance, this MML template:
From: alice@localhost
To: bob@localhost
Subject: MML simple
<#multipart type=alternative>
This is a plain text part.
<#part type=text/enriched>
<center>This is a centered enriched part</center>
<#/multipart>
compiles into the following MIME Message:
Subject: MML simple
To: bob@localhost
From: alice@localhost
MIME-Version: 1.0
Date: Tue, 29 Nov 2022 13:07:01 +0000
Content-Type: multipart/alternative;
boundary="4CV1Cnp7mXkDyvb55i77DcNSkKzB8HJzaIT84qZe"
--4CV1Cnp7mXkDyvb55i77DcNSkKzB8HJzaIT84qZe
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
This is a plain text part.
--4CV1Cnp7mXkDyvb55i77DcNSkKzB8HJzaIT84qZe
Content-Type: text/enriched
Content-Transfer-Encoding: 7bit
<center>This is a centered enriched part</center>
--4CV1Cnp7mXkDyvb55i77DcNSkKzB8HJzaIT84qZe--
See more examples at pimalaya/core/mml.
How to add attachments to a message?
Read first about the FAQ: How to compose a message?.
From: alice@localhost
To: bob@localhost
Subject: How to attach stuff
Regular binary attachment:
<#part filename=/path/to/file.pdf><#/part>
Custom file name:
<#part filename=/path/to/file.pdf name=custom.pdf><#/part>
Inline image:
<#part disposition=inline filename=/path/to/image.png><#/part>
See more examples at pimalaya/core/mml.
How to debug Himalaya CLI?
The simplest way is to use --debug
and --trace
arguments.
The advanced way is based on environment variables:
RUST_LOG=<level>
: determines the log level filter, can be one ofoff
,error
,warn
,info
,debug
andtrace
.RUST_SPANTRACE=1
: enables the spantrace (a span represent periods of time in which a program was executing in a particular context).RUST_BACKTRACE=1
: enables the error backtrace.RUST_BACKTRACE=full
: enables the full error backtrace, which include source lines where the error originated from.
Logs are written to the stderr
, which means that you can redirect them easily to a file:
RUST_LOG=debug himalaya 2>/tmp/himalaya.log
How the wizard discovers IMAP/SMTP configs?
All the lookup mechanisms use the email address domain as base for the lookup. It is heavily inspired from the Thunderbird Autoconfiguration protocol. For example, for the email address test@example.com
, the lookup is performed as (in this order):
- check for
autoconfig.example.com
- look up of
example.com
in the ISPDB (the Thunderbird central database) - look up
MX example.com
in DNS, and formx1.mail.hoster.com
, look uphoster.com
in the ISPDB - look up
SRV example.com
in DNS - try to guess (
imap.example.com
,smtp.example.com
…)
Special thanks to the NLnet foundation and the European Commission that helped the project to receive financial support from various programs:
- NGI Assure in 2022
- NGI Zero Entrust in 2023
- NGI Zero Core in 2024 (still ongoing)
If you appreciate the project, feel free to donate using one of the following providers: