Hello.
exim 4.95, example 1: # exim -be '${if match{abc}{\N^(\S+)\s*(\S.+)*$\N}{$1}{}}' abc That is ok exim 4.95, example 2: # exim -be '${if match{abc}{\N^(\S+)\s*(\S.+)*$\N}{$2}{}}' That is ok exim 96, example 1: # exim -be '${if match{abc}{\N^(\S+)\s*(\S.+)*$\N}{$1}{}}' abc That is ok exim 4.96, example 2: expected empty output: # exim -be '${if match{abc}{\N^(\S+)\s*(\S.+)*$\N}{$2}{}}' real output: # exim -be '${if match{abc}{\N^(\S+)\s*(\S.+)*$\N}{$2}{}}' 2022-11-10 23:14:51 [15433] SIGSEGV (fault address: 0x1) 2022-11-10 23:14:51 [15433] SIGSEGV (null pointer indirection) 2022-11-10 23:14:51 [15433] SIGSEGV (15433 initializing ) Segmentation fault -- Best wishes Victor Ustugov mailto:vic...@corvax.kiev.ua public GnuPG/PGP key: https://victor.corvax.kiev.ua/corvax.asc -- ## List details at https://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/