Customer birthday email templates for four kinds of business: an online store, food delivery, a subscription service and an online school. Open any of them in the editor and change the gift, the deadline and the colours for your own — no code involved.
Templates in this collection: 4

Birthday Email for Online Store Customers: Warm image, clear expiration promo code, and three products to choose from. Personal tone instead of promotional.

Birthday Letter for Student: Discount on Any Course with Clear Terms and Reminder of Lifetime Access.

Birthday email for service user: one month of paid plan for free, no card required, no auto-renewal.
A birthday email is the one send a year that a person reads as addressed to them personally. That is exactly why it is easy to ruin: balloons, confetti and exclamation marks turn a personal note back into an advert. The design here is deliberately quiet, and the gift is described concretely — how much, until when, and with no strings attached.
Start from what you are giving. Store credit or a discount suits the online store template, where the gift is backed by products to spend it on. A menu item suits the delivery template. If the gift is intangible — a month of a paid plan or a course discount — use the service and school variants: instead of a product grid they explain what opens up and what happens when the gift runs out.
Use the {{first_name}} variable — it is already in the headlines of these templates. Your sending platform substitutes the name from your list; the preview shows a demo value.
Yes. Open any template in the editor, replace the copy and images, then export the HTML or send it through your own provider.
Yes. The markup is table-based, with no flexbox or absolute positioning, and background images are duplicated in VML.
Send it on the anniversary of signup instead — the text and structure work almost unchanged, only the occasion in the headline differs.