Created attachment 806529 [details] mail.eml User Agent: Mozilla/5.0 (Windows NT 5.2; rv:24.0) Gecko/20100101 Firefox/24.0 (Beta/Release) Build ID: 20130909203154 Steps to reproduce: I have mails like this: Date: Wed, 01 Jan 2020 00:00:00 +0100 Subject: =?ISO-8859-1?Q??= MIME-Version: 1.0 Content-Type: TEXT/plain; CHARSET=iso-8859-1 Actual results: With TB17, an empty subject was displayed. After upgrading to TB 24.0, the encoding is shown. Expected results: The subject should be empty.
http://www.ietf.org/rfc/rfc2047.txt > encoded-word = "=?" charset "?" encoding "?" encoded-text "?=" > encoded-text = 1*<Any printable ASCII character other than "?" > or SPACE> "=?ISO-8859-1?Q??=" is invalid as an encoded word because at least one character is needed. Thunderbird 17 incorrectly decoded the "encoded word", then Thunderbird 24 fixed the bug.
Status: UNCONFIRMED → RESOLVED
Last Resolved: 4 years ago
Resolution: --- → INVALID
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