Re: chkuser log mesage, remote <helo:remotehostname:remotehostip>

Tonix (Antonio Nati) wrote:
> Eric Shubert ha scritto:
>> I use qmail-toaster, and recently changed from using -H with tcpserver 
>> to using -h, which looks up the rDNS name and puts it in the 
>> TCPREMOTEHOST variable.
>>
>> With the former setup (-H), the remote portion of the CHKUSER log 
>> message contained the helo value, "unknown" for the remotehostname, 
>> and the remotehostip value.
>>
>> With the current setup (-h, or blank), the message now contains the 
>> rDNS name in place of "unknown", as expected. The helo portion though, 
>> is now blank/null (missing). Is there some reason why the helo value 
>> isn't shown when there's a remotehostname value present? Looks like a 
>> bug to me.
>>
>> Many thanks, Tonix!
>>
> Hi Eric, it is not chkuser, it's a qmail behaviour.
> 
> If the helo is not different from (remote) hostname, qmail-smtpd sets it 
> to NULL.
> 
>     void dohelo(arg)
>     char *arg;
>     {
>       if (!stralloc_copys(&helohost,arg)) die_nomem();
>       if (!stralloc_0(&helohost)) die_nomem();
>       fakehelo = case_diffs(remotehost,helohost.s) ? helohost.s : 0;
>     }
> 
> Regards,
> 
> Tonino
> 

Thanks for this clarification Tonino. That's indeed what I'm seeing when 
I look a bit closer.

-- 
-Eric 'shubes'


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