header_checks rule skipped

Hi, I would like to tag/replace each message Subject: with some custom pattern and leave the rest unchanged. I'm using following header_checks rule: /^Subject:.*/ REPLACE Subject: PRE $1 but I get a warning: Aug 17 19:03:57 mail postfix/cleanup[20807]: [ID 947731 mail.warning] warning: regexp

Re: header_checks rule skipped

Stefan Varga wrote: Hi, I would like to tag/replace each message Subject: with some custom pattern and leave the rest unchanged. I'm using following header_checks rule: /^Subject:.*/ REPLACE Subject: PRE $1 but I get a warning: Aug 17 19:03:57 mail postfix/cleanup[20807]: [ID 947731