Gets or sets the list of addresses of recipients that are not to be revealed to other recipients of the message.

Gets or sets the list of addresses of others who are to receive the message.

Gets or sets the ICertificateFinder to be used to find certificates used to encrypt or sign the entity.

Gets or sets the comments on the message.

Gets or sets the content description of this entity.

Gets or sets the content disposition of this entity.

Gets or sets the content ID of this entity.

Gets or sets the content location of this entity.

Gets the inner message of a 'message/rfc822' entity.

Gets the content string of this entity.

Gets or sets the content transfer encoding of this entity.

Gets or sets the content type of this entity.

Gets or sets the origination date of this message.

Gets or sets the default charset for MIME body and headers.

Gets or sets the list of mailboxes that should be notified of message disposition by the receiving user agent.

Gets the EnvelopedData object that contains information about enveloped (encrypted) content. This property is only set for entities with enveloped content.

Gets or sets the envelope identifier to be transmitted along with the message and included in any DSNs issued.

Gets or sets the epilogue of this multipart entity.

Gets or sets the list of authors of this message.

Gets the list of headers of this entity.

Gets the charset (Encoding) of the content of this entity.

Gets or sets the list of identifiers of messages to which the message is a reply.

Determines whether the entity is a multipart entity.

Gets or sets the list of keywords.

Gets the type of the entity.

Gets or sets the list of URLs of the 'List-Archive' header.

Gets or sets the list of URLs of the 'List-Help' header.

Gets or sets the list of URLs of the 'List-Owner' header.

Gets or sets the list of URLs of the 'List-Post' header.

Gets or sets the list of URLs of the 'List-Subscribe' header.

Gets or sets the list of URLs of the 'List-Unsubscribe' header.

Gets or sets the unique identifier of the message.

Gets or sets the suggested file name of this entity, if it is present.

Gets or sets various options for MIME parser and writer.

Gets or sets the parent of this entity.

Gets the list of child parts of this entity.

Gets or sets the preamble of this multipart entity.

Gets or sets the priority of the message.

Gets or sets a value indicating whether the entity is read-only.

Gets or sets the list of identifiers of messages in the same "thread" of conversation.

Gets or sets the list of addresses that should receive replies to this message.

Gets or sets the sender of this message.

Gets or sets the signature style of a signed entity container. This property is only intended for entities with signed content.

Gets the SignedData object that contains information about signed content. This property is only set for entities with signed content.

Gets or sets a value indicating whether cryptographic providers are allowed to display any user interface (UI) when working with private keys.

Gets or sets the subject of the message.

Gets or sets the list of addresses of primary recipients of the message.

Gets or sets the TransferEncoding of the content of this entity.