To edit an auto responder or out of office message, you first need to log into your 123-reg control panel, then follow the instructions below:
1
Scroll down the page until you reach the Email section.
2
Click on the Manage email link.
3
Find the mailbox that you wish to set up an auto responder on under the Email Address section by selecting the relevant domain name from the drop down box.
4
Hover over the More button of the email address you wish to set the auto responder on.
5
Select Auto responder from the list that appears.

6
Select the ON button, enter your message and press the Save & Exit button to complete the setup.