Issues

• Mail::Header#charset= injects charset into multipart Content-Type (unlike the getter)

  mikel/mail#1689 · Filter by author carloskvasir opened on Oct 9, 2026
  1

• Please enable Private Vulnerability Reporting (security disclosure channel)

  mikel/mail#1687 · Filter by author manus-pi opened on Sep 14, 2026

• IndifferentHash public helpers depend on unrequired Active Support extensions

  mikel/mail#1683 · Filter by author OskarEichler opened on Aug 30, 2026

• POP and IMAP retrieval mutate collections and duplicate UID searches

  mikel/mail#1684 · Filter by author OskarEichler opened on Aug 30, 2026

• RFC 2231 continuations percent-decode unencoded segments

  mikel/mail#1685 · Filter by author OskarEichler opened on Aug 30, 2026

• Multibyte tidy_bytes accepts malformed UTF-8 sequences and miscomputes boundaries

  mikel/mail#1680 · Filter by author OskarEichler opened on Aug 30, 2026

• DSN retryability ignores additional recipient delivery statuses

  mikel/mail#1681 · Filter by author OskarEichler opened on Aug 30, 2026

• Sent-mail matchers raise when expected fields are absent

  mikel/mail#1682 · Filter by author OskarEichler opened on Aug 30, 2026

• Multipart parsing can skip content after consecutive blank sections

  mikel/mail#1686 · Filter by author OskarEichler opened on Aug 30, 2026

• Field mutation leaves derived caches and duplicated headers stale

  mikel/mail#1679 · Filter by author OskarEichler opened on Aug 30, 2026

• Regression in 2.9.0: non-ASCII (8bit) text bodies emit bare LF instead of CRLF (to_crlf removed from Body#initialize)

  mikel/mail#1662 · Filter by author akichim21 opened on May 19, 2026

• tls_hostname option is not passed to Net::SMTP

  mikel/mail#1660 · Filter by author machisuji opened on Mar 16, 2026
  1

• Mail gem shouldn't reorder parts of MIME messages

  mikel/mail#1658 · Filter by author Supermathie opened on Jan 13, 2026

• Body#decoded preserves ActiveSupport::SafeBuffer with 8bit encoding (regression in 2.9.0)

  mikel/mail#1657 · Filter by author dzirtusss opened on Jan 6, 2026

• Mail::Parser::AddressListsParser removes intentional escaping from address display names

  mikel/mail#1656 · Filter by author MattSNZ opened on Dec 10, 2025
  1

• Error "arguments expected to be an Array of individual string args": version 2.9.0 not compatible with rails 7.0.x

  mikel/mail#1652 · Filter by author pierre-alain-b opened on Nov 17, 2025
  5

• Mail::AddressList does not handle spaces immediately before / after the @ correctly

  mikel/mail#1651 · Filter by author coryknopp-wq opened on Nov 7, 2025

• Parser crashes on malformed header folding with misleading datetime error

  mikel/mail#1649 · Filter by author gavindsouza opened on Oct 24, 2025
  1

• Changelog / stable branch policy?

  mikel/mail#1648 · Filter by author JonRowe opened on Oct 23, 2025

• Windows-1252 encoding not recognized, charset read as UTF-8

  mikel/mail#1645 · Filter by author GMolini opened on Sep 16, 2025
  4

• to= does not properly detect an array of nil values

  mikel/mail#1642 · Filter by author alexbeeken opened on Jul 7, 2025

• [QUESTION] When latest version will be published?

  mikel/mail#1639 · Filter by author ruyrocha opened on Jun 11, 2025

• undefined method attr' for nil in find`

  mikel/mail#1638 · Filter by author stanley90 opened on May 6, 2025
  2

• Default mail-SMTP timeouts differ from the SMTP-defaults

  mikel/mail#1635 · Filter by author wuarmin opened on Feb 24, 2025

• Mail.new() crashes with error: invalid byte sequence in UTF-8

  mikel/mail#1634 · Filter by author Chris78 opened on Feb 21, 2025