GeniusConnect stores attachments in same format like Outlook/MAPI, we do not change binary attachment value (exact copy of Outlook/MAPI).
Help topic:
Item attachments The info about attachment binary image is stored in multiple columns, and the way how to view it in "Attachment method".
Available attachment columns:
Attachment binaryContains binary attachment data
Attachment content idEmbedded HTML Body image content identification header (only used with *HTMLBody)
Attachment content locationEmbedded HTML Body image content identification header (only used with *HTMLBody)
Attachment filenameAttachment base filename and extension, excluding path
Attachment full path and filenameAttachment fully qualified path and filename
Attachment long filenameAttachment long filename and extension, excluding path.
Attachment methodConstant representing the way the contents of an attachment can be accessed.
1=Attachment binary contains the attachment data by value
2=full path and filename contains a fully qualified path identifying the attachment to recipients with access to a common file server
3=full path and filename contains a fully qualified path identifying the attachment
4=Same as 3 but the messaging system never resolves the reference(link only)
5=Attachment binary is an embedded message
6=Attachment binary is an embedded OLE object
Formatting information about a Multipurpose Internet Mail Extensions (MIME) attachment. The composition of the string is defined in the RFC 1521 document. The format is type/subtype, such as application/binary or text/plain
Attachment numberMUST BE LINKED TO A TABLE COLUMN! Contains a number that uniquely identifies the attachment within its parent message.
Attachment rendering positionOffset, in characters, to use in rendering an attachment within the main message text.
All values other than 1 indicate the position within *HTMLBody at which the attachment is to be rendered.