Hi there,
We observed multiple exceptions regarding msg files. I think, if the files are not actual msg files, it would make sense to throwing an exception telling that the Documents are corrupted.
GroupDocs.Metadata.…...exception telling that the documents are corrupted. GroupDocs.Metadata...\u0003\u0016\u000F.\u0002(Document \u0002, \u0006\u001A\u000F...