On Tue, 27 Sep 2005, Herb Martin wrote:
> Do most people think that accepting _underscore is
> useful approach? Trouble?
In general, lack of technical prowess is not correlated with evil. Many
legitimate sites have broken DNS, so it's generally best to give people a
break for using underscores in hostnames.
There are plenty of other things that turn up in HELO hostnames which
*are* an accurate indicator of evil behaviour.
deny
message = Please use your name when saying HELO (not
$sender_helo_name)
condition = ${if or{{ eq{$ACL_HELO}{bad} } \
{ eq{$sender_helo_name}{$local_part} } \
{ match{$sender_helo_name}{^[0-9.-]+\$} } \
{ match{$sender_helo_name}{\N[.][.]|.{55}\N} } \
{ match_domain{$sender_helo_name}{+our_domains} }}
}
set ACL_HELO = bad
Tony.
--
<[EMAIL PROTECTED]> <[EMAIL PROTECTED]> http://dotat.at/ ${sg{\N${sg{\
N\}{([^N]*)(.)(.)(.*)}{\$1\$3\$2\$1\$3\n\$2\$3\$4\$3\n\$3\$2\$4}}\
\N}{([^N]*)(.)(.)(.*)}{\$1\$3\$2\$1\$3\n\$2\$3\$4\$3\n\$3\$2\$4}}
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