Add all BCC-recipients to a header for archiving

[André Peters]

Hello,




So far I am doing this:

/etc/postfix/main.cf
        always_bcc = arch...@archive.domain.tld
        smtpd_recipient_restrictions = ...,
          check_recipient_access pcre:/etc/postfix/x-add-envelope-to,
          ...
        transport_maps = hash:/etc/postfix/transport

/etc/postfix/transport:
        archive.domain.tld   smtp_keep_envelope_to:[IP.OF.ARCH.IVE]:25

/etc/postfix/x-add-envelope-to:
        /(.*)/   prepend X-Envelope-To: $1



/etc/postfix/master.cf

        smtp      unix  -       -       -       -       -       smtp
          -o smtp_header_checks=pcre:/etc/postfix/x-remove-envelope-to
        lmtp      unix  -       -       -       -       -       lmtp
          -o lmtp_header_checks=pcre:/etc/postfix/x-remove-envelope-to

Yes, I add it and then I remove it...

There is another way, isn't it?

Thank you for reading and regards,
André

For a mail archiving solution I need to write all BCC'ed recipients to a X-header. I am looking for a better way to hide this X-header from users than ignoring it at delivery and only keep it for recipient "arch...@archive.domain.tld". Next I added a header_check to smtp, which is the default_transport, same for lmtp, which is my local delivery agent. Furthermore I created a new smtp transport "smtp_keep_envelope_to", which does not remove any headers. smtp_keep_envelope_to unix - - - - - smtp

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