Can I migrate between email accounts that have different domain suffixes?
Yes. You may migrate data between email accounts that have different domain suffixes.
Let's say the Source email address is firstname.lastname@example.org, and the Destination email address is email@example.com. When the data is migrated, all of the data is carried over as is, with firstname.lastname@example.org. Note that we do not perform email address conversions.
After migration, ensure email@example.com is a secondary email address for repliability purposes.