To set Autoresponder in your Webmail interface:
1. Select the Settings button with the cog icon from the top navigation
2. Click the Autoresponder button on the left side
5. Click to put a checkmark in the box next to Enabled.
6. Optionally, in the Interval field, enter the number of days before the same recipient will receive the auto-response message again. If not specified, the interval defaults to one day.
7. Optionally, in the End Date field, enter the last day/time when the auto-response message is in effect. The required format is YYYY-MM-DD. If not specified, the Autoresponder never expires.
8. Enter the text of the auto-response message in the Autoresponder Text field.
9. Click Save.