You can add a vacation notice in your webmail account:
1. Go to:
The username is the complete email address, for example: firstname.lastname@example.org.
The password is the one you created when you activated this mailbox.
Click on "Sign in".
2. On the top-right click on the menu icon and then on "Settings":
3. On the left panel, go to Email > Vacation Notice.
Enter the subject of the message.
Enter the text of the message.
You can select the number of days between vacation notices to the same sender.
Don't forget to enable the vacation notice for your mailbox.
You can also determine a time period for the sending of vacation notices.