https://bugs.exim.org/show_bug.cgi?id=2793
--- Comment #4 from Thomas Tempelmann <tempelm...@gmail.com> --- Quick update: Thru the macro option to suppress the fast scan, I located the relevant code areas. Around line 6800 in pcre2_match.c the comment explains that, in caseless mode, it does indeed consider looking for both cases. I'm looking into this now... -- You are receiving this mail because: You are on the CC list for the bug. -- ## List details at https://lists.exim.org/mailman/listinfo/pcre-dev