Dataloader service is not able to process certain xml files where the Display Name of the From address starts with a non-standard character.
The following error is logged in the Event Viewer:
An error occurred running a SQL statement. Dumping the SqlCommand.
The Exception message was: [The INSERT statement conflicted with the FOREIGN KEY constraint FK_MessageRecipient_RecipientType. The conflict occurred in database ArchiveManager, table dbo.RecipientType, column RecipientType.
MessageRecipient Record failed to insert.
The Display Name of the From address of this email starts with a non-standard character.
Fixed in Archive Manager 4.3