https://bugs.exim.org/show_bug.cgi?id=2771
--- Comment #1 from Philip Hazel <philip.ha...@gmail.com> --- PCRE1 (the 8.xx series) is at end-of-life, so this is very unlikely ever to be investigated. There is no problem in PCRE2 (the 10.xx) series, which is currently being maintained and developed. PCRE2 version 10.36 2020-12-04 /(?:A(*:X))*+/mark A 0: A MK: X -- 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