MNE has three types of non-migrated Notes items.
Filtered items: Notes items that MNE does not migrate due to the Date filters, Attachment size filter, or Custom filters specified by customer in the INI settings.
Skipped items: Notes items that MNE does not migrate according to the Remigrate Mode specified by customer.
Ignored items: Notes items that MNE cannot migrate because their message type are unknown or are not the types supported by MNE for migration such as Mail, Task, Appointment or Contact message type. Ignored items are logged as Warning in the migration log.
Additional Notes: