Email not working since upgrade - permanent failure

Since you upgraded the email system, my email no longer works, even through the webmail link on Homestead. People sending me an email receive the following message "Delivery to the following recipient failed permanently:

linda@yourmindmastery.com

Technical details of permanent failure:
DNS Error: Domain name not found

----- Original message -----

DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
d=gmail.com; s=20120113;
h=mime-version:in-reply-to:references:date:message-id:subject:from:to
:content-type;
bh=FUQUdBm/O62NvNQ1lB73oXAFRF/O1XeDOhf4B/dfQ1M=;
b=l1L4W6YoXFVtGp6LCvoSOcg3/4pveqawq1+b5VB7Ekq7JThUP8FDWFPLJHcysNDHLj
WGsTo8f8igQAP8+Eau8sirNIPWM4pky9HJOtKD7fbUz45O2269/ifo6VCN+Cf7puJO+R
5IWvOYO2PLFORPfgkCW89bmbtKBOTEB/RmI+AZ+hbob4F2xDPstR4QBW/3KmJ16gkotr
2v1oLYBX+QP+CxAo0UuggwOF5bkGroqMefEndNEtAzxGEwjJnMwzkPIbCIo03sWkxTee
KdS/Je39Aaow1tnIcuz+DgYa0V3iFFjOrGdiOh+BHsR1Vr8Q6Y/sjJIy4IvWwoDsHmGL
DQBg==
MIME-Version: 1.0
X-Received: by 10.195.12.5 with SMTP id em5mr42871wjd.77.1393716660031; Sat,
01 Mar 2014 15:31:00 -0800 (PST)
Received: by 10.194.135.48 with HTTP; Sat, 1 Mar 2014 15:30:59 -0800 (PST)
In-Reply-To:
References:
Date: Sun, 2 Mar 2014 10:30:59 +1100
Message-ID:
Subject: Re: test4
From: Balbrenny Fife
To: linda
Content-Type: multipart/alternative; boundary=047d7bfcee6c7055fe04f393f224"