| Option | Description |
| Delivery Report | Select Only on failure to receive a report only if IBM® Lotus® Notes® cannot deliver the message. Select Confirm delivery to receive a report that says whether or not the message was delivered. Select Trace entire path to receive a report from each server that routes the message and a final report indicating whether or not the message was delivered. Select None to receive no report. |
| Delivery Priority | Select High to send the message immediately. Select Medium to send the message the next time your home mail server sends mail. Select Low to send the message during off-peak hours (between midnight and 6:00 AM, unless an administrator has changed it). |
| Return receipt | Sends you a notification when a recipient opens the message. |
| Do not receive responses from invitees | Sends a broadcast invitation or assignment, which gives recipients the option to add it to their calendars or to do lists without sending an answer back to you. |
| Prevent counter-proposals | Prevents recipients from proposing different dates or times. |
| Prevent delegation | Prevents recipients from delegating the invitation or assignment to someone else. |
| Sign | Adds a digital signature to the message to confirm for recipients that you are the person who sent it. |
| Encrypt | Encrypts the message so that only the intended recipients can read it. |