mail-server/CHANGELOG.md
2024-06-22 09:15:45 +02:00

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Change Log

All notable changes to this project will be documented in this file. This project adheres to Semantic Versioning.

[0.8.2] - 2024-06-22

To upgrade replace the stalwart-mail binary and then upgrade to the latest web-admin and spam filter versions.

Added

  • Webhooks support (#480)
  • MTA Hooks (like milter but over HTTP)
  • Manually train and test spam classifier (#473 #264 #257 #471)
  • Allow configuring default mailbox names, roles and subscriptions (#125 #290 #458 #498)
  • Include robots.txt (#542)

Changed

  • Milter support on all SMTP stages (#183)
  • Do not announce STARTTLS if the listener does not support it.

Fixed

  • Incoming reports stored in the wrong subspace (#543)
  • Return OK after a successful ManageSieve SASL authentication flow (#187)
  • Case-insensitive search in settings API (#487)
  • Fix session.rcpt.script default variable name (#502)

[0.8.1] - 2024-05-23

To upgrade replace the stalwart-mail binary and then upgrade to the latest web-admin and spam filter versions.

Added

  • POP3 support.
  • DKIM signature length exploit protection.
  • Faster email deletion.
  • Junk/Trash folder auto-expunge and changelog auto-expiry (#403)
  • IP allowlists.
  • HTTP Strict Transport Security option.
  • Add TLS Reporting DNS entry (#464).

Changed

  • Use separate account for master user.
  • Include server hostname in SMTP greetings (#448).

Fixed

  • IP addresses trigger R_SUSPICIOUS_URL false positive (#461 #419).
  • JMAP identities should not return null signatures.
  • Include authentication headers and check queue quotas on Sieve message forwards.
  • ARC seal using just one signature.
  • Remove technical subdomains from MTA-STS policies and TLS records (#429).

[0.8.0] - 2024-05-13

This version uses a different database layout which is incompatible with previous versions. Please read the UPGRADING.md file for more information on how to upgrade from previous versions.

Added

  • Clustering support with node auto-discovery and partition-tolerant failure detection.
  • Autoconfig and MS Autodiscover support (#336)
  • New variables retry_num, notify_num, last_error add last_status available in queue expressions.
  • Performance improvements, in particular for FoundationDB.
  • Improved full-text indexing with lower disk space usage.
  • MTA-STS policy management.
  • TLSA Records generation for DANE (#397)
  • Queued message visualization from the web-admin.
  • Master user support.

Changed

  • Make certificate.* local keys by default.
  • Removed server.run-as.* settings.
  • Add Microsoft Office Macro types to bad mime types (#391)

Fixed

  • mySQL TLS support (#415)
  • Resolve file macros after dropping root privileges.
  • Updated order of SPF Records (#395).
  • Avoid duplicate accountIds when using case insensitive external directories (#399)
  • authenticated_as variable not usable for must-match-sender (#372)
  • Remove StandardOutput, StandardError in service (#390)
  • SMTP AUTH=LOGIN compatibility issues with Microsoft Outlook (#400)

[0.7.3] - 2024-05-01

To upgrade replace the stalwart-mail binary and then upgrade to the latest web-admin version.

Added

  • Full database export and import functionality
  • Add --help and --version command line arguments (#365)
  • Allow catch-all addresses when validating must match sender

Changed

  • Add groupOfUniqueNames to the list of LDAP object classes

Fixed

  • Trim spaces in DNS-01 ACME secrets (#382)
  • Allow only one journald tracer (#375)
  • authenticated_as variable not usable for must-match-sender (#372)
  • Fixed BOGUS_ENCRYPTED_AND_TEXT spam filter rule
  • Fixed parsing of IPv6 DNS server addresses

[0.7.2] - 2024-04-17

To upgrade replace the stalwart-mail binary and then upgrade to the latest web-admin version.

Added

  • Support for DNS-01 and HTTP-01 ACME challenges (#226)
  • Configurable external resources (#355)

Changed

Fixed

  • Startup failure when Elasticsearch is down/starting up (#334)
  • URL decode path elements in REST API.

[0.7.1] - 2024-04-12

To upgrade replace the stalwart-mail binary.

Added

  • Make initial admin password configurable via env (#311)

Changed

  • WebAdmin download URL.

Fixed

  • Remove ASN.1 DER structure from DKIM ED25519 public keys.
  • Filter out invalid timestamps on log entries.

[0.7.0] - 2024-04-09

This version uses a different database layout and introduces multiple breaking changes in the configuration files. Please read the UPGRADING.md file for more information on how to upgrade from previous versions.

Added

  • Web-based administration interface.
  • REST API for management and configuration.
  • Automatic RSA and ED25519 DKIM key generation.
  • Support for compressing binaries in the blob store (#227).
  • Improved performance accessing IMAP mailboxes with a large number of messages.
  • Support for custom DNS resolvers.
  • Support for multiple loggers with different levels and outputs.

Changed

Fixed

  • Store quotas as u64 rather than u32.
  • Second IDLE connections disconnects the first one (#280).
  • Use relaxed DNS parsing, allowing underscores in DNS labels (#172).
  • Escape regexes within matches() expressions (#155).
  • ManageSieve LOGOUT should reply with OK instead of BYE.

[0.6.0] - 2024-02-14

This version introduces breaking changes in the configuration file. Please read the UPGRADING.md file for more information on how to upgrade from previous versions.

Added

  • Distributed and fault-tolerant SMTP message queues.
  • Distributed rate-limiting and fail2ban.
  • Expressions in configuration files.

Changed

Fixed

  • Do not include STATUS in IMAP NOOP responses (#234).
  • Allow multiple SMTP HELO commands.
  • Redirect OAuth using a 301 instead of a 307 code.

[0.5.3] - 2024-01-14

Please read the UPGRADING.md file for more information on how to upgrade from previous versions.

Added

  • Built-in fail2ban and IP address/mask blocking (#164).
  • CLI: Read URL and credentials from environment variables (#88).
  • mySQL driver: Add max-allowed-packet setting (#201).

Changed

  • Unified storage settings for all services (read the UPGRADING.md for details)

Fixed

  • IMAP retrieval of auto-encrypted emails (#203).
  • mySQL driver: Parse timeout.wait property as duration (#202).
  • X-Forwarded-For header on JMAP Rate-Limit does not work (#208).
  • Use timeouts in install script (#138).

[0.5.2] - 2024-01-07

Please read the UPGRADING.md file for more information on how to upgrade from previous versions.

Added

Changed

Fixed

  • IMAP command SEARCH <seqnum> is using UIDs rather than sequence numbers.
  • IMAP responses to APPEND and EXPUNGE should include HIGHESTMODSEQ when CONDSTORE is enabled.

[0.5.1] - 2024-01-02

Added

  • SMTP smuggling protection: Sanitization of outgoing messages that do not use CRLF as line endings.
  • SMTP sender validation for authenticated users: Added the session.auth.must-match-sender configuration option to enforce that the sender address used in the MAIL FROM command matches the authenticated user or any of their associated e-mail addresses.

Changed

Fixed

  • Invalid DKIM signatures for empty message bodies.
  • IMAP command SEARCH BEFORE is not properly parsed.
  • IMAP command FETCH fails to parse single arguments without parentheses.
  • IMAP command ENABLE QRESYNC should also enable CONDSTORE extension.
  • IMAP response to ENABLE command does not include enabled capabilities list.
  • IMAP response to FETCH ENVELOPE should not return NIL when the From header is missing.

[0.5.0] - 2023-12-27

This version requires a database migration and introduces breaking changes in the configuration file. Please read the UPGRADING.md file for more information.

Added

  • Performance enhancements:
    • Messages are parsed only once and their offsets stored in the database, which avoids having to parse them on every FETCH request.
    • Background full-text indexing.
    • Optimization of database access functions.
  • Storage layer improvements:
    • In addition to FoundationDB and SQLite, now it is also possible to use RocksDB, PostgreSQL and mySQL as a storage backend.
    • Blobs can now be stored in any of the supported data stores, it is no longer limited to the file system or S3/MinIO.
    • Full-text searching con now be done internally or delegated to ElasticSearch.
    • Spam databases can now be stored in any of the supported data stores or Redis. It is no longer necessary to have an SQL server to use the spam filter.
  • Internal directory:
    • User account, groups and mailing lists can now be managed directly from Stalwart without the need of an external LDAP or SQL directory.
    • HTTP API to manage users, groups, domains and mailing lists.
  • IMAP4rev1 Recent flag support, which improves compatibility with old IMAP clients.
  • LDAP bind authentication, to support some LDAP servers such as lldap which do not expose the userPassword attribute.
  • Messages marked a spam by the spam filter can now be automatically moved to the account's Junk Mail folder.
  • Automatic creation of JMAP identities.

Changed

Fixed

  • Spamhaus DNSBL return codes.
  • CLI tool reports authentication errors rather than a parsing error.

[0.4.2] - 2023-11-01

Added

  • JMAP for Quotas support (RFC9425)
  • JMAP Blob Management Extension support (RFC9404)
  • Spam Filter - Empty header rules.

Changed

Fixed

  • Daylight savings time support for crontabs.
  • JMAP oldState doesnt reflect in */changes (#56)

[0.4.1] - 2023-10-26

Added

Changed

Fixed

  • Dockerfile entrypoint script.
  • bayes_is_balanced function.

[0.4.0] - 2023-10-25

This version introduces some breaking changes in the configuration file. Please read the UPGRADING.md file for more information.

Added

  • Built-in Spam and Phishing filter.
  • Scheduled queries on some directory types.
  • In-memory maps and lists containing glob or regex patterns.
  • Remote retrieval of in-memory list/maps with fallback mechanisms.
  • Macros and support for including files from TOML config files.

Changed

  • config.toml is now split in multiple TOML files for better organization.
  • BREAKING: Configuration key prefix jmap.sieve (JMAP Sieve Interpreter) has been renamed to sieve.untrusted.
  • BREAKING: Configuration key prefix sieve (SMTP Sieve Interpreter) has been renamed to sieve.trusted.

Fixed

[0.3.10] - 2023-10-17

Added

  • Option to allow invalid certificates on outbound SMTP connections.
  • Option to disable ansi colors on stdout.

Changed

  • SMTP reject messages are now logged as info rather than debug.

Fixed

[0.3.9] - 2023-10-07

Added

  • Support for reading environment variables from the configuration file using the !ENV_VAR_NAME special keyword.
  • Option to disable ANSI color codes in logs.

Changed

  • Querying directories from a Sieve script is now done using the query() method from eval. Your scripts will need to be updated, please refer to the new syntax.

Fixed

  • IPrev lookups of IPv4 mapped to IPv6 addresses.

[0.3.8] - 2023-09-19

Added

  • Journal logging support
  • IMAP support for UTF8 APPEND

Changed

  • Replaced rpgp with sequoia-pgp due to rpgp bug.

Fixed

  • Fix: IMAP folders that contain a & can't be used (#90)
  • Fix: Ignore empty lines in IMAP requests

[0.3.7] - 2023-09-05

Added

  • Option to disable IMAP All Messages folder (#68).
  • Option to allow unencrypted SMTP AUTH (#72)
  • Support for rcpt-domain key in rcpt.relay SMTP rule evaluation.

Changed

Fixed

  • SMTP strategy Ipv6thenIpv4 returns only IPv6 addresses (#70)
  • Invalid IMAP FETCH responses for non-UTF-8 messages (#70)
  • Allow STATUS and ACL IMAP operations on virtual mailboxes.
  • IMAP SELECT QRESYNC without specifying a UID causes panic (#67)
  • Milter DATA command is sent after headers which causes ClamAV to hang.
  • Sieve redirect of unmodified messages does not work.

[0.3.6] - 2023-08-29

Added

  • Arithmetic and logical expression evaluation in Sieve scripts.
  • Support for storing query results in Sieve variables.
  • Results of SPF, DKIM, ARC, DMARC and IPREV checks available as environment variables in Sieve scripts.
  • Configurable protocol flags for Milter filters.
  • Fall-back to plain text when STARTTLS fails and starttls is set to optional.

Changed

Fixed

  • Do not panic when hash = 0 in reports. (#60)
  • JMAP Session resource returns EmailSubmission capabilities using arrays rather than objects.
  • ManageSieve PUTSCRIPT should replace existing scripts.

[0.3.5] - 2023-08-18

Added

  • TCP listener option nodelay.

Changed

Fixed

  • SMTP: Allow disabling STARTTLS.
  • JMAP: Support for OPTIONS HTTP method.

[0.3.4] - 2023-08-09

Added

  • JMAP: Support for setting custom HTTP response headers (#52)

Changed

Fixed

  • SMTP: Missing envelope keys in rewrite rules (#25)
  • SMTP: Remove CRLF from Milter headers
  • JMAP/IMAP: Successful authentication requests should not count when rate limiting
  • IMAP: Case insensitive Inbox selection
  • IMAP: Automatically create Inbox for group accounts

[0.3.3] - 2023-08-02

Added

  • Encryption at rest with S/MIME or OpenPGP.
  • Support for referencing context variables from dynamic values.

Changed

Fixed

  • Support for PKCS8v1 ED25519 keys (#20).
  • Automatic retry for import/export blob downloads (#14)

[0.3.2] - 2023-07-28

Added

  • Sender and recipient address rewriting using regular expressions and sieve scripts.
  • Subaddressing and catch-all addresses using regular expressions (#10).
  • Dynamic variables in SMTP rules.

Changed

  • Added CLI to Docker container (#19).

Fixed

  • Workaround for a bug in sqlx that caused SQL time-outs (#15).
  • Support for ED25519 certificates in PEM files (#20).
  • Better handling of concurrent IMAP UID map modifications (#17).
  • LDAP domain lookups from SMTP rules.

[0.3.1] - 2023-07-22

Added

  • Milter filter support.
  • Match IP address type using /0 mask (#16).

Changed

Fixed

  • Support for OpenLDAP password hashing schemes between curly brackets (#8).
  • Add CA certificates to Docker runtime (#5).

[0.3.0] - 2023-07-16

Added

  • LDAP and SQL authentication.
  • subaddressing and catch-all addresses.
  • S3-compatible storage.

Changed

  • Merged the stalwart-jmap, stalwart-imap and stalwart-smtp repositories into stalwart-mail.
  • Removed clustering module and replaced it with a FoundationDB backend option.
  • Integrated Stalwart SMTP into Stalwart JMAP.
  • Rewritten JMAP protocol parser.
  • Rewritten store backend.
  • Rewritten IMAP server to have direct access to the message store (no more IMAP proxy).
  • Replaced actix with hyper.

Fixed