Before you venture into transferring all of your email accounts over to an external service, you should set up backup accounts in the meantime. While this is not a necessary step, it can be useful in case there is any sort of delay between setup and full use. For instance, if you find that you’ll be transferring your email networks over the course of a week, you will need a backup account or service. During this time, you may be unable to access the old service hosted on your own networks or use the new one hosted on the external networks.
Again, this is not a required step for the transfer, but it can be beneficial if you do a majority of your communication through email and expect to have a considerable gap between service stop and start times. Just remember to go over all of the particulars with the company with whom you choose to outsource. A good company will want to know your needs and do their best to meet those needs.
