MNE's Data Migration Wizard offers a fourth option (option 3 in the list below) for the Notes user name field when Manage mail routing is selected and Quest's CMN is designated as the coexistence method.
[Notes]
PrependSmtpAddressToUserName=<#>
0 (default): Do nothing with the Notes user name field.
1: prepend: Insert SMTP address at top of user name field.
2: append: Insert SMTP address at bottom of user name field.
3: Insert SMTP address as the second address in the user name field.
CMN's Free/Busy Connector requires the SMTP address in the user name field, either at the top of the field (PrependSmtpAddressToUserName=1) or at the bottom (2), depending on the selected mail-routing method.
The "SMTP address" address comes from the forwarding options screen in MNE ('Set mail forwarding address | Build address from').
