man 5 header_checks By default, regexp <http://www.postfix.org/regexp_table.5.html>: and pcre <http://www.postfix.org/pcre_table.5.html>: patterns are case *insensitive*.
Am Do., 18. Juli 2019 um 13:40 Uhr schrieb Matus UHLAR - fantomas < uh...@fantomas.sk>: > On 18.07.19 13:35, Stefan Bauer wrote: > >header_checks = regexp:/etc/postfix/headerstring > >/^Subject: .*\[cleartext\].*/ FILTER cleartext: > > > >And now, there is the following mail-Subject, that did not trigger the > >above FILTER and i dont see why: > > > >Subject: > > >=?Windows-1252?Q?[Cleartext]_Webinar_=84Noch_keine_55_und_ab_in_die_GKV=93?= > > > "cleartext" vs. "Cleartext" looks like case sensitivity problem. > -- > Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/ > Warning: I wish NOT to receive e-mail advertising to this address. > Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. > I intend to live forever - so far so good. >
