How To Write A Gentle Reminder Letter . If your company tends to use more formal language, start off with hello, kate. beginning with dear is generally too formal for a friendly email reminder, but stick with it if that's your company's default greeting. Remember one thing the message of gentle reminder you have to send on reply chain no need write fresh mail. 50 Polite Reminder Email Samples & Templates ᐅ TemplateLab from templatelab.com How to write a gentle reminder letter. Luckily, you could easily construct a good reminder letter in under ten minutes with the help of the following steps: The only problem, especially for beginners, is how to write a good one.