neomutt/neomutt

Features

• Terminal Email Clients - Manages, reads, and sends electronic mail through a customizable command line interface.
• Email Thread Management - Groups related messages into trees based on subject or reference headers.
• Mailbox Managers - Provides a terminal-based organizer for managing multiple email accounts, mailboxes, and complex message threading.
• Message Filtering - Filters and selects groups of messages using threading and regular expression searches.
• Local Mailbox Formats - Reads and writes messages using local storage standards like mbox, MMDF, and Maildir.
• Message Search - Locates specific messages using regular expressions or external indexing utilities.
• Content Search Filters - Provides fast message lookups using external search engines and a header cache.
• Regex-Based Search Filters - Selects messages based on headers or body content using regular expressions and boolean operators.
• Discussion Threading - Groups related messages into hierarchical tree structures with support for collapsing and expanding threads.
• Email Account Integrations - Manages multiple external email accounts, including credential population via external commands.
• Email Clients - Provides a text-based user interface for reading and composing emails via IMAP, POP3, and SMTP.
• IMAP Mailbox Managers - Browses, creates, renames, and deletes mailboxes on a remote IMAP server.
• Mail Protocol Workflows - Synchronizes remote mailboxes, manages folders, and fetches messages using standard network protocols.
• Remote Mail Retrieval Services - Connects to IMAP and POP3 servers to fetch, poll, and manage remote mailboxes.
• Message Delivery Pipelines - Implements a message delivery pipeline for composing and sending emails with custom headers and attachments.
• MIME Readers - Decodes and manages multipart MIME messages and attachments through external handlers.
• POP3 Email Retrieval - Connects to a remote POP3 server to browse or download messages for local storage.
• SMTP Message Transmission - Composes and transmits emails through remote servers with secure authentication and encrypted connections.
• SMTP Sending - Transmits outgoing messages to remote servers using the SMTP protocol with secure authentication.
• Terminal Email Compositions - Provides a terminal-based interface for composing emails with message previews and attachment alerts.
• Cryptographic Key Management - Provides tools for importing, exporting, and verifying PGP and S/MIME certificates and public keys.
• PGP-Enabled Email Clients - Integrates PGP and S/MIME for encrypting and signing electronic messages.
• Terminal PGP Email Clients - Secures email communications by encrypting and signing messages with cryptographic keys via PGP and S/MIME.
• PGP Email Encryptions - Protects email content using PGP or S/MIME to ensure privacy and sender authenticity.
• Multi-Account Profiles - Automates the switching of credentials, tunnels, and settings across multiple remote accounts.
• SSL/TLS Connection Security - Secures connections to mail servers using SSL, TLS, or STARTTLS protocols.
• MIME Tree Decompositions - Visualizes MIME structure in a tree view to save, delete, or modify individual parts.
• Email Index Views - Displays an index view of emails featuring status flags and thread hierarchies.
• Message Viewers - Displays email bodies and headers in a pager featuring regular expression-based coloring.
• MIME Message Viewing - Decodes MIME types and cryptographic signatures into a text representation within the pager.
• Folder Event Hooks - Runs configuration commands automatically when entering or loading mailboxes that match a pattern in Mutt.
• Mailbox Organization - Provides a sidebar of mailboxes with options for pinning, sorting, and filtering.
• Message Event Hooks - Runs configuration commands before formatting or viewing a message based on content and metadata in Mutt.
• Message Scoring - Assigns numerical values to messages based on patterns to influence sorting and priority.
• Recipient Event Hooks - Executes configuration commands based on the recipients of a message being sent in Mutt.
• Email Automation - Uses keyboard macros and event hooks to automate repetitive mailing tasks and configuration changes.
• Contact Management - Implements utilities for searching contacts via alias menus and managing nickname groups.
• Server-Side Filtering & Sorting - Offloads search term processing to the mail provider API to filter messages on the server.
• Message Body Storage - Saves full email contents locally to avoid redundant downloads of the same message.
• Application Automation Hooks - Provides automated action triggers based on account, folder, or message patterns.
• Automation Hooks - Implements global hooks and triggers that execute commands when new mail arrives.
• Command Sequence Automation - Automates tasks by pushing predefined strings of keystrokes to the keyboard buffer.
• Custom Key Mappings - Enables the reassignment of keys to trigger specific functions or operations within the interface.
• Email Attachments - Handles email attachments by saving, viewing, or piping them to external shell commands.
• Event Hooks - Triggers custom logic and arbitrary commands automatically when specific UI events occur.
• Keyboard Macro Engines - Automates sequences of user actions by assigning them to single key combinations.
• Custom Key Action Bindings - Maps specific interface actions to custom key bindings and macros to accelerate terminal navigation.
• Thread Restructuring - Allows linking broken replies to parent messages or splitting unrelated discussions into new threads.
• Message Header Caches - Caches email headers in a local database to speed up the process of accessing large folders.
• Multipart Email Formatters - Supports the creation of multipart emails by grouping attachments into alternative or multilingual bundles.
• NNTP Client Capabilities - Enables subscribing to and posting articles to NNTP news servers using standard protocols.
• Key-Address Mapping - Maps public key IDs or fingerprints to email addresses to automate the encryption process.
• OAuth2 Email Authentications - Supports secure token-based OAuth2 authentication for connecting to modern mail providers.
• Secure Communication Protocols - Implements TLS-SNI negotiation and supports secure message encryption including self-encrypted copies.
• External Tool Integrations - Executes external command-line utilities for cryptography, content filtering, and configuration expansion.
• Mailbox Monitors - Periodically checks local or remote folders for new messages and triggers notifications.
• Email Forwarding - Supports forwarding existing messages to new recipients as verbatim copies or modified content.
• Message Grouping - Marks multiple messages matching a pattern to perform a single operation on the group.
• Terminal Interface Customization - Customizes the terminal layout, sidebars, and status lines using configurable format strings.
• Mailbox Metadata Caches - Stores folder headers in a local database to minimize the time spent fetching remote messages.

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