Direct Mail vs Email for Ecommerce: When Is a Postcard Worth It?

Why this comparison even matters

Most ecommerce brands send more email than they'd like to admit, and open rates have followed the obvious trend downward. A postcard sits in a much smaller, much less competitive inbox: the mailbox. That doesn't make it better for everything. It makes it a different tool, best reached for at specific moments rather than used as a replacement for email.

What email is still better at

Email wins on speed, frequency, and cost per send. If you need to announce a flash sale in the next hour, or touch every subscriber weekly, email is the right tool.

• Near-zero marginal cost per send
• Can go out in minutes, not days
• Easy to send weekly or more without it feeling strange

What a postcard does that email can't

A postcard gets physically opened by nearly everyone it reaches, because there's no delete key on a mailbox. It also carries weight an email can't: a customer who gets a real card in the mail tends to remember it, and tends to read it as a bigger gesture than it cost you to send. This isn't just an ecommerce intuition: personalized mail shows measurable lift even for high-value B2C purchases.

• Effectively a 100% open rate
• Reaches customers who've gone numb to your email list
• Feels personal even when it's triggered automatically

A simple way to decide

Instead of asking "email or postcard" for every campaign, ask it per moment. Reach for a postcard when the moment is rare enough to deserve more than an inbox line, and when the customer is valuable enough that a non-trivial print and postage cost still pays back. For a broader look at the question, see our guide on when you should use direct mail.

• A customer crossed a spend or order-count threshold
• A customer has gone quiet for 60-120 days
• It's a seasonal or anniversary moment worth marking
• Email to that segment has already been tried and ignored

Where to start

You don't need to pick one channel. Most stores that do this well keep email as the everyday channel and layer in postcards for the handful of moments above. See current plans and pricing to size out what a VIP or win-back postcard batch would cost against your own customer list.