I have been considering upgrading to a dedicated or vps server for some time. In my research I ran across a comment on another forum that didn't seem correct and was hoping someone could clarify.

This person upgraded to dedicated and stated he failed to verify his mx records accuracy and was the reason his emails where not being sent out properly.

My question is, does upgrading from shared to dedicated require you to make some kind of change to your mx records? If so, what change needs to be made? I would think upgrading to dedicated would have no effect on your mx records for your email.

Thanks in advance for any advise.