Am 17.12.2013 06:16, schrieb li...@sbt.net.au:
> On Tue, December 17, 2013 3:24 pm, li...@sbt.net.au wrote:
> 
>> Dec 17 14:22:25 emu postfix/smtpd[29232]: NOQUEUE: reject: RCPT from
>> unknown[67.195.87.182]: 450 4.7.1 Client host rejected: cannot find your
>> hostname, [67.195.87.182]; from=<christinex...@yahoo.com>
>> to=<x...@sbt.net.au> proto=ESMTP helo=<nm47-vm4.bullet.mail.gq1.yahoo.com>
> 
>> # host 67.195.87.182
>> 182.87.195.67.in-addr.arpa domain name pointer
>> nm47-vm4.bullet.mail.gq1.yahoo.com.
>>
>> why am I not accepting this...?
> 
> is it my freemail host line ?
> 
> "from_freemail_host =
>  reject_unknown_client

"cannot find your hostname" is pretty clear - no PTR
this is OK, any proper MTA needs a PTR

google for SMTP authentication

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