How To Write A Recommendation Letter Reminder . Once they’ve agreed, set a reminder for yourself to follow up three days prior to the due date and politely remind anyone whose recommendation hasn't come in to send it. Click the edit button next to the recommender you would like to send a reminder. Letter To Retain Employee • Invitation Template Ideas from howtostepmom.com How to remind someone to write a letter of recomendation. Assuming you have waited long enough, or that the situation is really urgent (and the urgency wasn’t of your making!), if at all possible, go to their office in person and ask them when they think they’ll get to the letter. How to write a gentle reminder email.