Leonardo Rodrigues Magalhães wrote:
> 
> Jan  2 10:18:35 topserver2 policyd: invalid triplet_array[11][5]: 
> (blacklist helo): 
> Jan  2 10:18:35 topserver2 policyd: invalid triplet_array[11][5]: 
> (blacklist helo): 
> Jan  2 10:19:10 topserver2 policyd: invalid triplet_array[12][5]: 
> (blacklist helo): 
> Jan  2 10:19:10 topserver2 policyd: invalid triplet_array[12][5]: 
> (blacklist helo): 
> 
>     Seems that it's cause by a helo string filled with interrogation 
> marks ... i dont know if that's the real helo sent by client or it's 
> some translation done by postfix and passed to policyd ...
> 
>     Enabled DEBUG=2 and got (just lines i think it's relevant)
> 
> Jan  2 10:20:10 topserver2 policyd: DEBUG: fd: 9 
> policy_array[9][0]:request=smtpd_access_policy
> Jan  2 10:20:10 topserver2 policyd: DEBUG: fd: 9 
> policy_array[9][5]:helo_name=??????
> Jan  2 10:20:10 topserver2 policyd: invalid triplet_array[9][5]: 
> (blacklist helo):
> 
> Jan  2 10:20:10 topserver2 postfix/smtpd[3094]: NOQUEUE: reject: RCPT 
> from unknown[124.46.177.150]: 450 <[EMAIL PROTECTED]>: Recipient 
> address rejected: Policy Rejection- Invalid data; 
> from=<trucker'[EMAIL PROTECTED]> to=<[EMAIL PROTECTED]> 
> proto=ESMTP helo=<??????>
> 
>     That's an 'Invalid Data' error ..... that's not the usual for 
> greylist rejections, which would be: Please try later, greylisting in 
> action.
> 
>     Watching the logs closely, it seems to me that all occurences of 
> this helo=<?????> were from connections that are SPAM messages. I havent 
> seen this happening on 'good' connections. Thus, this isnt generating a 
> real problem, altough it's logging a problem situation.

The content provided by the HELO string sent by the spammer is in
some type of binary or 7/8bit. Policyd will only accept acsii chars
and strip out everything else which is not legal (according to Policyd).

You shouldn't have any issues with it.

Cami

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