On Sun, Feb 24, 2008 at 04:51:49PM +0000, Jeremy Harris wrote: > Graeme Fowler wrote: > > the MX records aren't in RFC1918 space and so on > > Before I dive into processing my logs - is this > a common case in the wild?
Pretty common. I just checked my logs for today and found one straight away. You can easily detect and reject this by using a dnslookup router with ignore_target_hosts, then adding require verify = sender in your ACL(s). No need to go trawling back through the logs unless you really feel like you have to. -- Dave Evans http://djce.org.uk/ http://djce.org.uk/pgpkey
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