Gets the list of all alternative elements. You can use AddAlternative(MimeBase) or AddAppointment(Appointment) methods to add attachment to this collection.

'Bcc' field (Blind Carbon copy), addresses of others who are to receive the message, tough the content of the message may not be directed at them. May be empty. You can use MailBox to represent single mailbox, or MailGroup to represent group of email addresses.

'Cc' field (Carbon copy), addresses of others who are to receive the message, even tough the content of the message may not be directed at them. May be empty. You can use MailBox to represent single mailbox, or MailGroup to represent group of email addresses.

'Date' field, message send date. May be null when not specified or in case of parsing error.

'From' field, author(s) of the message. If empty, email-message is NOT RFC 2822 compliant.

Gets or sets HTML version of the email. If value is not empty extracts plain text from HTML and overrides Text property.

'Importance' field, message's importance. It's easier to use PriorityHigh()()()() or PriorityLow()()()() methods then setting this field.

'In-Reply-To' field, message's parent, without surrounding brackets (< and >).

'Message-ID' field, message's id. Without surrounding brackets (< and >). If not set or set to null generated automatically.

Gets the list of all visual elements. You can use AddAttachment(MimeData) method to add attachment to this collection.

'Disposition-Notification-To' header. May be empty. It's easier to use RequestReadReceipt()()()() method then adding addresses to this property.

'Priority' field, message's priority. It's easier to use PriorityHigh()()()() or PriorityLow()()()() methods then setting this field.

'References' field, ids of the referenced messages. Without surrounding brackets (< and >).

'Reply-to' field, mailbox(es) to which the author of the message suggests that replies be sent. May be empty. You can use MailBox to represent single mailbox, or MailGroup to represent group of email addresses.

'Return-Receipt-To' field. May be empty. It's easier to use RequestReadReceipt()()()() method then adding addresses to this property.

'Sender' field, mailbox of the agent responsible for the actual transmission. If 'Sender' is null use From property.

'Sensitivity' field, message's sensitivity.

Gets or set the value indicating whether default values (message-id, date) should be set. Default is true.

Gets S/MIME decrypt configuration (automatic decryption, certificates used for decryption)

'Subject' field, message's subject.

Gets or sets plain text version of the email. Please remember that setting Html will override plain text.

'To' field, address(es) of the primary recipient(s) of the message. May be empty. You can use MailBox to represent single mailbox, or MailGroup to represent group of email addresses.

Gets the list of all non visual elements. You can use AddVisual(MimeData) method to add attachment to this collection.

'X-Confirm-Reading-To' field. May be empty. It's easier to use RequestReadReceipt()()()() method then adding addresses to this property.

'X-Priority' field (Outlook specific). Value ranges from "1" to "5" where "1" is the highest priority, "3" is normal, and "5" is the lowest priority. It's easier to use PriorityHigh()()()() or PriorityLow()()()() methods then setting this field.