Setting up an effective out-of-office autoresponder may seem to be a simple task. However, there is nothing worse than receiving an automated response that is not clear or useful. You want your “out of office” message to provide useful information and clarify why you are not available now. You certainly want to avoid any confusion or frustration.
Visuals always work whether used in messages or elsewhere. In fact, communications that include images produce 650% higher engagement than text-only messages.

Listen, who doesn’t love a little furry animal friend? If you want to put a smile on your colleague’s face then why not include a cute little GIF or photograph of some adorable animals. Go on, brighten their day.
I used to work with someone who had a message telling people she only checked her email twice a day. You pretty much needed to call her if you needed anything outside of those times. (She worked in a remote office.) I think she had read one of those books on efficiency that recommended scheduled email time. But there were problems with this: 4. My department often had to email attachments or text to illustrate our questions/concerns. And we were on deadlines. Reading a page of text over the phone was not an efficient use of anyone’s time 5. She did outreach & was often out of the office on site visits, trainings, or travel to these places, but never ever set her OOO for these, because she was “working.” However, she was effectively not available to read emails from other staff until after hours on those days.