v0.4.0

What's Changed

• Adds Ruby 3.1 and 3.2 to the CI matrix. by @petergoldstein in #50
• Revert "Replace Timeout.timeout with socket timeout" by @hsbt in #51
• add Net::SMTP::Authenticator class and auth_* methods are separated from the Net::SMTP class. by @tmtm in #53
• fix typo by @tmtm in #54
• Add SMTPUTF8 support by @arnt in #49
• Fix: send_message() with recipients as array by @tmtm in #55
• Fixed issue sending emails to unaffected recipients on 53x error by @tmtm in #56
• Removed unnecessary Subversion keywords by @tmtm in #57
• refactor test code by @tmtm in #58
• The mailfrom method's arguments restored. by @tmtm in #59
• Bump actions/checkout from 3 to 4 by @dependabot in #60
• remove SMTPUTF8RequiredError by @tmtm in #61
• v0.4.0 by @tmtm in #62

New Contributors

• @petergoldstein made their first contribution in #50
• @arnt made their first contribution in #49

Full Changelog: v0.3.3...v0.4.0