Just change your MX entry to the new email server.
Date: Wed, 8 Jul 2015 08:18:14 -0700
From: [email protected]
To: [email protected]
Subject: [qmailtoaster] Forward to a Different Server
I
have a domain on my Qmail Server that I am migrating to another
server. I want both servers to be up as I am transitioning the
domain. My question is, how do I keep the old server up and have
it just forward new email destined to the domain to the new server
and not try to capture it locally?
Gilbert Gutierrez