Source Google Apps Contacts email field may have the following format:
- Email address contains text, but does not contain an @ sign
- Email address is properly formatted, but it contains a space within the domain name
- Email address is formatted as CN=First M Last/OU=CA/O=ON or First Last
Target Office365 contact does accept above values within the designated email address field if manually provided. However, after the migration, target email field is blank.
Add the missing email values after the migration
Enhancement request number PT106303404 has been submitted to Development for consideration in a future release of On Demand Migration for Email.