RBL checks when some mail is received via a relay

Martin Hepworth maxsec at gmail.com
Thu Aug 4 18:56:53 IST 2011

Why are the emails from this relay being trusted? Have you whitelisted it or


On Thursday, 4 August 2011, Tim Cappell <tc at sommersoft.de> wrote:
> We have a Mailscanner setup where some of the mails (from an older domain)
are received by a relay (which is not blacklisted). Mailscanner works fine
for all the mails we receive directly but RBL checks do not apply to those
mails sent via the relay (which is still about 50%). Thus there are a lot of
spam mails that get through although the originating mail server is
> Is there a way to apply a method similar to “Read IP Address From Received
Header” _only_ to mails where the last hop is that specific relay server?
> Best regards,
> Tim Cappell

Martin Hepworth
Oxford, UK
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