At 10:33 +0100 Tony Finch wrote:
>Michael Bordignon <michael.b@???> wrote:
>>
>>The problem with this is that when it is finally delivered to the primary,
>>spam by-passes the RBL check (as the server the mail is coming from will be
>>our secondary). Are there any known ways around this?
>
>You have to implement the same security checks on all your MXes.
Yes, but since Exim 4.14 can do this:
defer message = you are listed in $dnslist_domain \n \
please use the primary MX for $domain
domains = +relay_domains
dnslists = rbl-plus.mail-abuse.ja.net : \
dynablock.wirehub.net : relays.ordb.org : \
relays.osirusoft.com : opm.blitzed.org : bl.spamcop.net
hosts = +rbl_hosts
log_message = $domain RBL ($dnslist_domain)
..and this is the sort of thing you can persuade your backup MX admins to
implement (hello Steve :)
Matt
