This article describes the errors and their resolution which occur when certain attachments of emails fail to get indexed. The following errors are logged in: ..\\FailedAttachments.txt and ..\MailArchiver\Search\DebugLogs\IndexableAttachment.log
Error 1: System.NotSupportedException: The given path's format is not supported.
Error 2: System.ArgumentException: Illegal characters in path.
GFI Archiver Build 20130704, 20130723
Upgrade to MARC 2013 R2 (and rebuild indexes if needed).