https://bugzilla.redhat.com/show_bug.cgi?id=1305061 --- Comment #6 from Petr Pisar <ppisar@xxxxxxxxxx> --- Splitting on spaces and then concatenating is problematic. ASCI SPACE QUOTED sequence and QUOTED SPACE QUOTED sequence has different rules for ignoring the SPACE in between. The Encode::MIME::Header was broken because of this and the 2.83 fixed it finally. The resolution is that Encode::MIME::Header will always encode whole header value as one chunk. If an application wants to encode headers with e-mail addresses (e.g. To:), it must do the segmentation by itself and pass for encoding only the interested parts. See <https://rt.cpan.org/Public/Bug/Display.html?id=111853> and a fix for a broken Encode::MIME::Header user <https://github.com/theory/svn-notify/pull/15>. I don't know yet what to do in Fedora 23. Maybe I will applyr you patch to restore older behavior in the expense that the encoding will be broken in some cases. But Fedora >= 24 will include the 2.83 version that does not do the segmentation and the one who must be fixed there will be the applications. I'm sorry upgrading the perl-Encode in Fedora 23 caused problems to you, I will try to restore the old behavior thankfully to your patch. Please talk to Encode developers in <https://rt.cpan.org/Public/Bug/Display.html?id=111853>. They are experts in this area and I believe they can explain the Encode design better than me and can help you with developing the best fix for you applications. -- You are receiving this mail because: You are on the CC list for the bug. -- Fedora Extras Perl SIG http://www.fedoraproject.org/wiki/Extras/SIGs/Perl perl-devel mailing list perl-devel@xxxxxxxxxxxxxxxxxxxxxxx http://lists.fedoraproject.org/admin/lists/perl-devel@xxxxxxxxxxxxxxxxxxxxxxx