[Dovecot] 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@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@example.com;" but the dovecot LDA doesn't?

Thanks,

--

Best regards,

Charles