Drav Sloan wrote:
> Dennis Davis wrote:
>
>> Something like:
>>
>> deny message = Rejected because of unacceptable syntax in \
>> HELO/EHLO name:\n\
>> $sender_helo_name\n\
>> This is commonly associated with misconfigured \
>> mail software;\n\
>> see RFC2821 section 4.1.2 for legal domain syntax.
>> log_message = invalid HELO syntax $sender_helo_name
>> condition = ${if ! match {$sender_helo_name}{\N^[^.].*\.[^.]+$\N}}
>>
>
> Another popular method:
>
> deny message = ....
> !condition = ${if match{$sender_helo_name}{\\\.}{yes}{no}}
>
Yup.
I'm also using
deny message = $sender_helo_name is my IP address
condition = ${if eq{$sender_helo_name}{$interface_address}{yes}{no}}
deny condition = ${if match
{${lc:$sender_helo_name}}{\N^(.*\.|)(DOMAINS)$\N}{1}{0}}
message = Do not pretend to be me, impostor
- where DOMAINS is a macro listing all "local" domain names. These these
checks are not executed for mails originating from our LAN of course...
- T
