Hello! This is a question to ask about your email client. I’ve linked some resources below: [https://support.google.com/mail/answer/25922 Gmail] [https://support.microsoft.com/en-us/office/send-automatic-replies-out-of-office-from-outlook-9742f476-5348-4f9f-997f-5e208513bd67#OfficeVersion=Web Outlook] [https://support.apple.com/guide/icloud/set-up-an-automatic-reply-mm6b1a04d1/icloud iCloud] If you need more assistance, ask on the help forum of the email client you are using.

Thanks for providing an answer, Cain. Cain is right, this is not a Firefox for iOS question, therefore, I'll lock the thread instead of keeping it open to avoid confusion.