Hello. Postfix's header_checks features logging certain headers for incoming and outgoing messages. For example, I could set a header_checks file like this:
/^subject:/ INFO And then I could read each message subject in the log, which is useful. Sadly, if the subject header spans across multiple lines in the MIME source, this introduces an spurious "? " in place of each line break. Suppose I send a message with the following header: "This is a very long long header, which spans through several lines in the MIME source and will serve to demonstrate that Postfix header_checks is a little buggy, introducing spurious question marks." In my mail client, that subject will be split among three lines, the first starting with "Subject: " and the other two starting with an space to indicate they are continuation of the previous header. This is standard behavior allowed by RFC 2822, specified in section 2.2.3. Postfix does not seem to be decoding headers well when it logs them, therefore I get this in the log: 124522602BB: info: header Subject: This is a very long long header, which spans through several lines? in the MIME source and will serve to demonstrate that Postfix header_checks? is a little buggy, introducing spurious questi Regards, Juan Luis.
