Frank Elsner wrote:
deny message = Illegal argument in HELO/EHLO ($sender_helo_name)
log_message = Strange IP addr given
condition = ${if and {\
{ isip {$sender_helo_name}}\
{ !eq {$sender_helo_name}{$sender_host_address}}\
{ !eq {$sender_helo_name}{[$sender_host_address]}}\
}\
{yes}{no}}
I disallow an unbracketed IP too. Cuts out loadsa junk.
Often as not it's *my* ip, mind, which the above would catch.
However, I also have customers (presumably behind NAT) giving
a bracketed rfc1918 address as a helo name which doesn't
match $sender_host_address, and I need to accept those. So for
now I don't compare against that.
Cheers,
Jeremy
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