Hi Larry,




>________________________________
> From: Larry Stone <lston...@stonejongleux.com>
>To: "postfix-users@postfix.org Users" <postfix-users@postfix.org> 
>Sent: Tuesday, March 19, 2013 7:46 AM
>Subject: Re: Duplicate Emails Sent
> 
>We generally do not top post on this list. Please keep replies in-line.
>
>Ok...
>
>
>On Mar 19, 2013, at 6:17 AM, Ed <ej19...@yahoo.com> wrote:
>
>> I have requested the info from site1.
>> 
>
>From your initial description, it appears the problem is with site3. Site1 
>information will probably not be helpful.
>
>> I looked for the SMTP RCPT TO command in the man file. 
>> 
>> Could you provide a hint as to the configuration parameter?
>
>Sounds like you need to learn about how SMTP works. RCPT TO is one of the 
>commands used between an SMTP client and an SMTP server. The address listed 
>after RCPT TO is what is called the "envelope recipient" and is the 
>destination address to which the server will deliver or forward the mail. The 
>"To" and "CC" headers in a mail message are just part of the message to a mail 
>server (think of it like snail mail - the post office delivers the mail to the 
>recipient on the envelope and does not care at all to whom the letter inside 
>the envelope says it is addressed).
>
>Yes, your correct.  I do need to learn.
>
>Your initial description makes it sound like something at site3 is parsing the 
>message headers (From, To, and CC) and then attempting to resend the message 
>to those addresses. If true, that is very wrong behavior on the part of site3. 
>Your example says "m...@site3.com" so I assume you are the site3 recipient. 
>Are you running some sort of script on the received message that might be 
>doing this? Do you control the site3 SMTP server or are you just a user there? 
>
>I have control over the site3 SMTP where the problem is. It is recent 
>installation, late last year.  Is there a rule in postfix that i missed 
>perhaps?
>
>
>-- 
>Larry Stone
>lston...@stonejongleux.com
>http://www.stonejongleux.com/
>
>> 
>> From: Victor d'Agostino <d.agostino.vic...@gmail.com>
>> To: postfix-users@postfix.org 
>> Sent: Monday, March 18, 2013 5:45 PM
>> Subject: Re: Duplicate Emails Sent
>> 
>> Hi Ed,
>> 
>> It seems that site3.com smtp server use header recipients instead of SMTP 
>> RCPT TO recipients and also send to the sender ...
>> 
>> Can you post email headers to check the Received From fields ?
>> 
>> 
>> Le 18/03/2013 21:51, Ed a écrit :
>>> Hi All.
>>> 
>>> The scenario:
>>> 
>>> From: a...@site1.com
>>> To:      b...@site2.com
>>> CC:    m...@site3.com
>>> 
>>> After receiving the email CC at site 3, site 3 is sending out emails to 
>>> everyone on the original, 
>>> basically a duplicate email arrives to the sender and everyone in the 
>>> headers.
>>> 
>>> >>a sends mail to b with me in cc.
>>> >>me sends mail to everyone in the email headers
>>> 
>>> I am asking how to stop this behavior.?
>>> 
>>> I tried in an earlier attempt to post my postconf contents here but was 
>>> rejected due to size.
>>> 
>>> Thanks
>>> 
>>> Ed
>> 
>> 
>> 
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