Re: [exim] Changing email headers to reflect server IP when …

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Author: Heiko Schlittermann
Date:  
To: exim-users
Subject: Re: [exim] Changing email headers to reflect server IP when they pass through Exim
Hi,


James Worix <james.worix@???> (Fr 17 Apr 2015 20:15:37 CEST):

> issue with mobile devices that use third party email clients to send and
> receive emails. The problem being that when they are in the field using
> Verizon LTE or similar that their dynamic ips are automatically blacklisted
> in most major DNS lists. I only really have 2 options.


As Lena wrote, nobody should(!) care about thouse Received:-Header
lines, as this is a quite common scenario.

But … we had a similiar situation with our customers. The Received-Header we
add does not contain the IP address the message was submitted from,
if we got it via an authenticated connection.

received_header_text = Received: \
  ${if and{{!def:authenticated_id}{!def:tls_cipher}}\
       {${if def:sender_rcvhost {from $sender_rcvhost\n\t}\
           {${if def:sender_ident {from ${quote_local_part:$sender_ident} }}\
            ${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}}}\
  by $primary_hostname \
  ${if def:received_protocol {with $received_protocol}} \
  ${if def:tls_cipher {($tls_cipher)\n\t}}\
  (Exim $version_number)\n\t\
  ${if def:sender_address \
  {(envelope-from <$sender_address>)\n\t}}\
  id $message_exim_id\
  ${if def:received_for {\n\tfor $received_for}}


I believe, this solved the issue. If I remember well, it was
SpamAssassin, that complained about dynamic address in the
Received-Header (probably if there wasn't authentication mentioned in
the same header, I do not know…)

    Best regards from Dresden/Germany
    Viele Grüße aus Dresden
    Heiko Schlittermann
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