property Message.BodyEncoding as BodyEncodingEnum
Specifies the way the message's body is encoded.

TypeDescription
BodyEncodingEnum A BodyEncodingEnum expression that defines the encoding type of the message's body.
By default, the BodyEncoding property is BodyEncodingBASE64. Use the BodyEncoding property to specify the encoding type of the message's body. The BodyText / BodyHTML property specifies the message's body to be sent.

The BodyEncoding property could be: