For a digital download, the delivery email is the product's front door. The buyer never sees your storage, your checkout plumbing, or your dashboard. They see one message, usually on a phone, usually within a minute of paying — and from that message alone they decide whether you are a professional or a risk. Most sellers write this email once, in a hurry, and never look at it again. This is a teardown of what a good one actually contains, section by section, with example copy you can adapt. None of it requires design talent. All of it is wording, order, and placement.

1. The subject line: name the product, not the platform

The subject has one job: be findable later. Weeks after buying, a customer who lost the file will search their inbox — by your product's name, not by "your order has arrived." So the product name goes in the subject, first if it fits.

Weak: "Your download is ready!"
Better: "Your download: Watercolor Brush Pack Vol. 2"

The weak version could be from anyone, about anything, and it vanishes into a folder of identical subjects. The better version is a search result waiting to happen. Keep your store name out unless it is the name buyers know you by — the product is what they remember buying.

2. The first line: confirm what they bought

Open with a plain confirmation, in the first sentence, before any button: what they bought, and that the payment worked. Anxiety is highest in the seconds after checkout, and the first line is where you spend it down.

Example: "Thanks — your copy of Watercolor Brush Pack Vol. 2 is ready below. This email is your receipt and your download in one place, so keep it."

That second sentence does quiet, important work: it tells the buyer this message is worth saving, which means your download link stays findable for the life of their inbox.

3. The download button: early, singular, and labelled with the file

Put one download button high in the message — above the fold on a phone — and label it with what it fetches, not with a generic verb. "Download the Brush Pack (ZIP, 240 MB)" beats "Download now" for two reasons: the buyer knows the click worked when the right file arrives, and the file size sets expectations before a slow connection turns into a support ticket. One button, not three. Multiple links to the same file invite the buyer to click the wrong one, hit a limit twice, and write to you convinced delivery is broken. Everything else in the email supports this single action; nothing competes with it.

4. The limits line: say the rules while the buyer is happy

Directly under the button, in ordinary text, state the download limit and the expiry — if there are any — in the same sentence as the remedy.

Example: "This link works for 25 downloads and doesn't expire on the Pro-delivered copy — if you ever hit the limit or lose this email, reply here and I'll reset it."

Sellers hide limits because they fear looking stingy. Buyers experience a hidden limit very differently: as a trap discovered at the worst moment, on a new machine, mid-project. A limit stated up front, next to a painless way around it, reads as housekeeping. The same limit discovered later reads as a scam, and it is the single most common wording in one-star delivery reviews.

5. The license key block: separate, labelled, and copyable

If the product uses a license key, give it its own block — visually separate from the download, with a label that says what it unlocks and where it goes.

Example:

Your license key (for the Pro brushes — paste it into Settings → License inside the app):
XXXX-XXXX-XXXX-XXXX

Keys buried in a paragraph get pasted with trailing spaces, split across lines, or lost entirely, and each failure becomes a "your key doesn't work" ticket. A standalone block in a monospace style survives forwarding, screenshotting, and copy-paste. Saying where the key goes — the menu path, not just "enter your key" — kills the second most common key ticket before it is written.

6. The support path: one reply, not a scavenger hunt

State exactly how to get help, and make it the lowest-effort channel you actually read. For most small sellers that is simply: "Reply to this email." A delivery message that ends with a no-reply address and a link to a help centre tells a stuck buyer that the door is closed. One line is enough, but it must promise a human outcome, not a process: "Reply to this email if anything looks wrong — a person reads these, and lost links are always reset free." That sentence, present before anything goes wrong, is what turns a frustrated buyer into a patient one.

7. The update promise: one sentence about the future

End the body with what happens next: whether updates are included, and how they will arrive.

Example: "When Vol. 2 gets an update, the new version lands on this same link and I'll email you — you won't need to buy it again."

This does three things. It justifies keeping the email. It pre-answers the "do I get the new version?" question that otherwise arrives with every release. And it quietly distinguishes you from sellers whose links die silently. If updates are not included, say that instead, just as plainly — an honest "this purchase covers version 2.x" now is cheaper than a dispute later.

What to leave out

Three things commonly pad delivery emails and all three cost you. Marketing for your other products goes below everything above, if it appears at all — a buyer who cannot find their download because a cross-sell pushed it off-screen will not buy the second product either. Legal text belongs in a small footer, not the body; leading with terms reads as distrust at the exact moment trust is forming. And never attach the file itself to the email: attachments get stripped, blocked, and out of date, and an attached copy carries no limit, no expiry, and no way to revoke it after a refund.

The 30-second test

Send the email to yourself and read it on your phone as a stranger would: Can you name the product from the subject alone? Can you reach the download in one tap, without scrolling past anything that is not the download? Do you know the limits, where the key goes, and who to reply to — without opening a second page? If all three are yes, your delivery email is doing the job most sellers never ask of it: making the sale feel finished.

Closing note — one tool that delivers this way: FileFreight emails each buyer a unique tokenized download link with no buyer account needed; limits and expiry are set per product (up to 25 downloads and 30 days on the free plan, unlimited and never-expiring on Pro), paid PDFs are stamped per-buyer on first download, files run up to 500 MB, and a license key is issued with every paid order when enabled (checkable via POST /api/licenses/validate, revocable anytime), with a Stripe refund automatically revoking access. Pro is $19/month with 0% per-sale fees; the free plan is 5% per sale. The honest caveats: it is NOT a merchant of record and does not handle sales tax or VAT — that stays with you; there is no automatic importer (the first 20 sellers get a free white-glove migration, products and files rebuilt by hand); it is not a Shopify app — each product gets a standalone buy link; it is delivery-only, with no marketplace or discovery; and it is new and small.