| AddressType | Contains the recipient's e-mail address type, such as Simple Mail Transfer Protocol (SMTP). |
| DisplayName | Contains the display name of the recipient. |
| DisplayName7Bit | Contains a 7-bit ASCII representation of the recipient's display name. |
| DisplayType | Contains a value used to associate an icon with a particular row of a table. |
| EmailAddress | Contains the recipient's e-mail address. |
| EntryId | Contains the EntryID of the recipient. |
| InstanceKey | Contains a value that uniquely identifies a row in a table. |
| ObjectType | Contains the type of the recipient. |
| OriginatingAddressType | |
| OriginatingEmailAddress | |
| RecipientType | Contains the recipient type for a message recipient. |
| Responsibility | Contains true if some transport provider has already accepted responsibility for delivering the message to this recipient, and false if the MAPI spooler considers that this transport provider should accept responsibility. |
| SearchKey | Contains a binary-comparable key that identifies correlated objects for a search. |
| SendInternetEncoding | Contains a bitmask of encoding preferences. |
| SendRichInfo | Contains true if the recipient can receive all message content, including Rich Text Format (RTF) and Object Linking and Embedding (OLE) objects. |
| SmtpAddress | Contains SMTP email address. |
| TransmitableDisplayName | Contains a recipient's display name in a secure form that cannot be changed. |