Before you move it's worth taking a little time to clean up your email list. This will also help with deliverability.
These lessons take you through the steps to create backups of your data and then clean up so that your new account will be all clean and lovely. This is not essential but it's not going to be possible to do some of it until you have your new account established for a couple of months at least so this is a good time to do it!
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