On Wed, 6 May 2026 10:52:59 +0200 Paul Menzel via Postfix-users <[email protected]> wrote:
> Dear Enrico, > > > Am 06.05.26 um 10:36 schrieb Enrico Morelli via Postfix-users: > > On Wed, 6 May 2026 10:20:51 +0200 Paul Menzel via Postfix-users > > wrote: > > >> Am 06.05.26 um 10:13 schrieb Enrico Morelli via Postfix-users: > >> > >>> I've a Debian 11 mail server with Postfix 3.5.25. I've configured > >>> Postfix to filter the headers with: header_checks = pcre:/etc/ > >>> postfix/header_checks.pcre > >>> > >>> However, some emails with subjects listed in the file are still > >>> delivered. > >>> > >>> E.g. > >>> /^Subject:.*Pulitore.WC.Più.Votato.2025.*/ REJECT > >>> > >>> A positive test result: > >>> > >>> postmap -q "Subject: Pulitore WC Più Votato 2025" > >>> pcre:/etc/postfix/header_checks.pcre REJECT > >>> > >>> Why Postfix don't reject the email? Where I've to investigate? > >>> After writing a new entry in header_checks.pre, have I to reload > >>> Postfix? > >> > >> Please look at and share the actual header entry Subject in the > >> emails. Often they are encoded, and Postfix header checks don’t > >> decode it. You need to use a milter for this usecase. > > > The subject is the following: > > > > Subject: Pulitore WC Più Votato 2025 > I thought due to the ù, it’d need to be encoded. Where did you copy > this from? In Thunderbird you can press Ctrl + u to look at the > message source. The email should also be stored in some file, and you > could look into it directly? > I use Claws-Mail but the Ctrl+u works so the subject is: Subject: =?utf-8?B?UHVsaXRvcmUgV0MgUGnDuSBWb3RhdG8gMjAyNQ==?= I think that I cannot use header_checks for that :-)). What can I use? > > Kind regards, > > Paul > _______________________________________________ > Postfix-users mailing list -- [email protected] > To unsubscribe send an email to [email protected] -- ----------------------------------------------------------- Enrico Morelli System Administrator | Programmer | Web Developer CERM - Polo Scientifico via Sacconi, 6 - 50019 Sesto Fiorentino (FI) - ITALY ------------------------------------------------------------ _______________________________________________ Postfix-users mailing list -- [email protected] To unsubscribe send an email to [email protected]
