The home server is being phased out. The domain services are, once again, hosted at HostPapa. This works now because HostPapa now offers WordPress hosting with unlimited data. This is a good fit for peterharvey.org.
HostPapa now offers something called VPS. This is a good fit for codebydesign.com.
This should help with emails as well – no failed reverse DNS lookup. This caused some email being sent to end up in recipient spam.
However; the next 24-48 hrs could see email as being a little spotty as MX record changes propagate.