Yes I am using SPF.
LIKE - v=spf1 mx ~all
can I make it more stringent.
Here I am giving another contents of a returned mail, which even mentions my IP address i.e. 59.90144.48
Hi. This is the qmail-send program at mail.bsa-romania.com.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.
Sorry, no mailbox here by that name. (#5.1.1)
--- Below this line is a copy of the message.
Received: (qmail 27607 invoked by uid 507); 19 Aug 2010 16:23:00 +0300
Received: from mywebsolutions.co.in (220.127.116.11)
by mail.bsa-romania.com with SMTP; 19 Aug 2010 16:23:00 +0300
Date: Thu, 19 Aug 2010 18:53:02 +0530
Subject: Don't be a killjoy when the lights go off
Content-Type: text/plain; charset="ISO-8859-1"
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