1) Login to SekurMail
2) Click on Settings
3) Click on Filters
4) Click on "Create" on top right
5) Under "Filter name" You can add "Vacation message" or whatever you like
6) Under Scope, change to "All Messages"
7) Under Actions, Click "Move messages to", you'll see a drop down, select "Reply With Message".
8) Under "Message Body" Type your vacation message, Message Subject, etc. Fill out all the fields to your desire.
9) Specify the number of days you want this vacation message to be active.
10) Click on "Save".
Note:
You can turn on/off this filter by clicking on the filter and then clicking the "Filter Enabled" slider to toggle this filter.