Hi,
        Thanks for your reply. For reject_unverified_sender  what would be a
better way of dealing with it?
Thanks.
Dave.


-----Original Message-----
From: Noel Jones [mailto:[email protected]] 
Sent: Tuesday, August 04, 2009 1:02 PM
To: [email protected]; [email protected]
Subject: Re: Am I an open relay?

Dave wrote:
> Hello,
> I'm adjusting my postfix configuration to try to cut down on the spam 
> i'm getting. I have noticed an event in my maillog that has me 
> concerned that i'm now inadvertently an open relay. If this is so i'd like
to fix it.
> Here's the error:
> 
> Aug  4 11:18:12 <hostname> postfix/smtp[22025]: 48A91150900A8:
> to=<[email protected]>,
> relay=mail.autourdupiano.com[62.128.135.33]:25, delay=31, 
> delays=0/0/31/0.12, dsn=2.0.0, status=deliverable (250 ok) Aug  4 
> 11:18:12 <Hostname> postfix/qmgr[21957]: 48A91150900A8: removed

This is a sender verification probe from your reject_unverified_sender
restriction.  Notice the "deliverable" tag.

As a general rule it's a bad idea to verify all senders since some mail
admins see this as abuse and will blacklist you. 
Best use with caution.

   -- Noel Jones

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