dovecot - Jan 2014 - Received: header showing 127.0.0.1 after switch to dovecot LDA?

Hi all,

I'm guessing this is correct behavior, but wanted to make sure...

I noticed that for locally delivered messages (between 2 local users 
inside our domain, so they never leave the server), the first Received: 
header line content changed after I switched to the dovecot LDA.

Before, using postfix/virtual for delivery, the header looked like this:

Received:
from [192.168.1.25] (client.example.com [192.168.1.25]) by 
smtp.example.com (Postfix) with ESMTPSA id 67E33A20542; Wed, 6 Jun 2012 
10:55:55 -0400 (EDT)

But now it looks like this:

Received:
from [127.0.0.1] (client.example.com.com [192.168.1.14]) by 
smtp.example.com (Postfix) with ESMTPSA id 4EEF7802AF325 for 
<me at example.com>; Wed, 15 Jan 2014 18:29:17 -0500 (EST)

so, 2 questions...

1. Why does it show 127.0.0.1 instead of the client IP, and

2. Why did postfix/virtual include the "for <me at
example.com>;" but the
dovecot LDA doesn't?

Thanks,

-- 

Best regards,

Charles

-----BEGIN PGP SIGNED MESSAGE-----
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Charles Marcus wrote:
> Hi all,
> 
> I'm guessing this is correct behavior, but wanted to make sure...
> 
> I noticed that for locally delivered messages (between 2 local
> users inside our domain, so they never leave the server), the first
> Received: header line content changed after I switched to the
> dovecot LDA.
> 
> Before, using postfix/virtual for delivery, the header looked like
> this:
> 
> Received: from [192.168.1.25] (client.example.com [192.168.1.25])
> by smtp.example.com (Postfix) with ESMTPSA id 67E33A20542; Wed, 6
> Jun 2012 10:55:55 -0400 (EDT)
> 
> But now it looks like this:
> 
> Received: from [127.0.0.1] (client.example.com.com [192.168.1.14])
> by
       HELO-string  (TCP info derived from IP)

The double .com.com is from your anonymiziation, I guess. The client
uses 127.0.0.1 as HELO
> smtp.example.com (Postfix) with ESMTPSA id 4EEF7802AF325 for
> <me at example.com>; Wed, 15 Jan 2014 18:29:17 -0500 (EST)
  just a single recipient


- -- 
Steffen
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