[exim] Disclaimer and DKIM

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Autor: Douglas, Daniel
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A: exim-users@exim.org
Assumpte: [exim] Disclaimer and DKIM
Message classification: OFFICIAL

Hi all

We need to add disclaimers to out email and also use DKIM to sign our messages. Each of these things work individually but if they are both configured on a transport then the DKIM check fails because the disclaimer is added after the signature has been added. The disclaimers are added using altermime in a transport filter (see transport below)

remote_smtp_outbound:
debug_print = "T: remote_smtp for $local_part@$domain - Disclaimer domain = $acl_c_disclaimer"
headers_add = X-disclaimer-domain: $acl_c_disclaimer
driver = smtp
transport_filter = /usr/bin/altermime --verbose --log-syslog --input=- --disclaimer=/etc/exim4/local/disclaimers/$acl_c_disclaimer/textdisclaimer --disclaimer-b64=/etc/exim4/local/disclaimers/$acl_c_disclaimer/disclaimer.b64 --disclaimer-html=/etc/exim4/local/disclaimers/$acl_c_disclaimer/htmldisclaimer
size_addition = -1
dkim_domain = ${lc:${domain:$h_from:}}
dkim_selector = x
dkim_private_key = /etc/exim4/local/dkim_keys/$dkim_selector/dkim.$dkim_domain.key
dkim_canon = relaxed
dkim_sign_headers = DKIM_HEADERS_BTLS

Is there any way to add the disclaimer before the DKIM signature is generated that anyone knows of or a different way of adding disclaimers?

Thanks in advance

Dan Douglas


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