You have just learned that you will be absent for several days due to health reasons. The reflex is to activate the automatic reply on your messaging system, but what exactly should you write? A poorly formulated out-of-office message for illness can create confusion among your contacts, or even pose a legal problem. Writing a clear, sober message that complies with labor law requires following a few specific rules.
Medical confidentiality and out-of-office message: what you should not write
The most common trap is to say too much. The part of the sick leave notice intended for the employer does not mention the diagnosis, which is protected by medical confidentiality. Your out-of-office message should never indicate the nature of your illness.
Writing “I am hospitalized for knee surgery” or “absent due to burnout” exposes your private life to all your professional contacts. Every person who sends you an email receives this automatic reply: clients, suppliers, salespeople, former colleagues.
The preferred wording remains deliberately neutral: “for medical reasons” or “on sick leave.” Nothing more. If you are drafting a template for an out-of-office message for illness that can be reused, this neutrality should be the foundation of each version.
Another often overlooked point: the out-of-office message does not replace the official procedure for transmitting the sick leave notice. The employee must submit this document within 48 hours according to the procedures established by the company. The automatic email informs, it does not justify.
Uncertain return date: what wording to choose
When you go on vacation, you know the return date down to the day. In the case of illness, it is rarely that simple. A sick leave can be extended or shortened based on medical advice.
Promising a return date that you are not sure you can meet creates two problems. Your contacts plan a meeting for that date, only to find out that you are still absent. You also put unnecessary pressure on yourself to return.
If the end date is unknown, write “until further notice” or “duration to be specified.” It is more honest than a hypothetical date. If your initial sick leave has a defined end date, you can indicate it, knowing that an extension remains possible.
Note: an early return does not depend solely on your desire to come back. It requires medical authorization, notification to the health insurance fund, and informing your employer.
Redirecting emergencies without remaining available
You may want to write “in case of emergency, feel free to reach me on my personal phone.” This is a mistake. During sick leave, the employment contract is suspended. Handling emails, participating in meetings, or “helping out” remotely can be reclassified as work during the leave.
The right reflex is to designate a colleague or manager to take over. Before activating your message, inform this person and ensure they agree.
Elements to include in the redirection
- The name and surname of the replacement contact, so the sender knows who they are addressing
- The professional email address of this contact (avoid sharing a personal phone number without consent)
- A clarification on the scope: “for any questions related to project X” or “for urgent requests only”
A message that effectively redirects emergencies protects you. It shows your sense of organization without keeping you active.
Structure of an effective out-of-office message for illness
You now know the traps to avoid. Here’s how to assemble the message, from the simplest to the most complete.
The four blocks of a clear message
- The subject of the automatic email: “Out of Office” or “Automatic Reply – Out of Office” is sufficient. No need to mention illness in the subject
- A neutral opening sentence: “I am currently absent for medical reasons”
- Information on the duration: specific return date or mention “duration to be specified”
- The redirection: name, email, and scope of the replacement contact
No elaborate signature, no inspiring quote, no phrase like “take care of yourself.” The tone remains professional and concise.
Example of a ready-to-use message
“Hello, thank you for your message. I am currently absent for medical reasons and will not be able to respond to your emails before [date] (or: until further notice). For any urgent questions, you can contact [First Name Last Name] at [email]. I will address your message upon my return. Best regards, [Your signature].”
This template fits in six lines and covers all needs. It reveals nothing personal, redirects emergencies, and sets a realistic expectation for response time.
Adapting the tone according to the recipient: internal or external email
Most messaging systems allow you to configure two distinct out-of-office messages: one for internal contacts within the company, and one for external contacts.
Internally, you can be slightly more direct. Your colleagues know the context. Mentioning the name of the colleague who is taking over your files is sufficient, without excessive formality.
For external contacts (clients, partners, prospects), maintain a more formal tone. Do not mention the word “illness” if you prefer to remain discreet: “out of the office for an indefinite period” works perfectly. The interlocutor does not need to know the precise reason for your unavailability.
This distinction also avoids a common pitfall: giving too many operational details to a client (“my colleague Pierre is handling the budget file during my absence”) when a simple point of contact is sufficient.
A well-written out-of-office message is recognized by what it does not say. No diagnosis, no uncertain date, no implicit availability. Four pieces of information are enough: you are absent, for a defined or undefined duration, someone is taking over, and you will respond upon your return. The rest is your business.
