Not every email a business sends is trying to sell something. An order confirmation, a password reset, or a shipping update exists to give the recipient information they need. A new product announcement or a holiday sale promotion exists to get them to market a product or service to them.
The line isn’t always that clean, though. Plenty of emails blend the two, and how an email is classified affects which rules apply to it. Here’s a look at what separates transactional emails from marketing emails, how CAN-SPAM treats each one, and what happens when a single email tries to be both.
What Is a Transactional Email?
The FTC describes transactional or relationship content as content that “facilitates an already agreed-upon transaction or updates a customer about an ongoing transaction” (FTC, CAN-SPAM Act: A Compliance Guide for Business).
In other words, a transactional email is sent because of something the recipient already did or agreed to. Common examples include order and payment confirmations, shipping notifications, password resets, account alerts, and receipts. Recipients usually expect these messages, and many go looking for them, which is why they tend to get more attention than a marketing email.
What Is a Marketing Email?
The CAN-SPAM Act defines a commercial email as “any electronic mail message the primary purpose of which is the commercial advertisement or promotion of a commercial product or service” (FTC, CAN-SPAM Act: A Compliance Guide for Business).
This is what most people simply call a marketing email. Promotional campaigns, product announcements, cross-sell/upsell messaging, and re-engagement emails all typically fall into this category. Some go out to an entire list in a single campaign, while others are triggered automatically, like an abandoned cart email about items left in a shopping cart or a discount offer sent after someone joins a mailing list. Either way, their goal is to drive a click, a purchase, or some other response that is related to a sales or marketing action.
Where CAN-SPAM Comes In
CAN-SPAM outlines a set of requirements that all commercial email must adhere to, including using accurate header information, avoiding deceptive subject lines, clearly identifying the email as an advertisement, a valid physical postal address, and a clear way to unsubscribe, with opt-out requests honored within 10 business days.
Transactional or relationship messages are mostly exempt from these requirements. They still can’t contain false or misleading information, but they don’t require an unsubscribe link. The FTC lists five purposes that qualify an email as transactional, which we covered in our CAN-SPAM overview. What’s worth knowing is that the FTC reads those categories narrowly. Having an ongoing relationship with someone, like a customer or a subscriber, doesn’t automatically make every email you send them transactional.
When an Email Is Both
This is where things get tricky. Businesses often add a promotion to a transactional message, like product recommendations at the bottom of a receipt. This can change how the email is classified.
According to the FTC, an email that mixes transactional and commercial content is treated as commercial if either of the following is true:
- A recipient reading the subject line would reasonably conclude the email is promoting a product or service.
- The transactional content doesn’t appear mainly at the beginning of the email.
So, a shipping confirmation that leads with the shipping details and ends with a short “you might also like” section is likely still transactional. Flip that order, opening with a big sale banner and pushing the shipping details to the bottom, and the same email is likely commercial, with all of CAN-SPAM’s requirements attached. That’s true even if the subject line says “Your Order Has Shipped.”
Why the Distinction Matters Beyond Compliance
Opt-Outs
When someone unsubscribes, they’re asking to stop receiving your marketing emails, not information about an order they placed. Transactional messages can continue being sent, even if a recipient has unsubscribed from the brand’s marketing emails. But if those emails are promotional, or mostly promotional as mentioned above, that opt-out applies to them just like any other marketing email.
Inbox Provider Requirements
The distinction shows up outside of legal requirements, as well. Gmail and Yahoo! require bulk senders to support one-click unsubscribe on marketing emails, but purely transactional messages like receipts and password resets are excluded. Once promotional content takes over a transactional email, that exemption becomes much harder to count on.
Recipient Trust
People open transactional emails because they’re expecting something specific. If those emails start reading like ads, recipients may stop paying close attention to them or start marking them as spam, which can create problems for your entire email program.
Sender Reputation
Many senders keep transactional and marketing email on separate systems and email foundations, such as different sending domains or IP addresses. That way, a marketing campaign is less likely to affect the delivery of receipts and password resets.
Most of the time, the difference between a transactional email and a marketing email is fairly straightforward. It’s the gray area in between that deserves a closer look. When in doubt, try to read the email the way a recipient would. If the subject line or the top of the message feels like a promotion, it should probably be treated like one.
Quick disclaimer: None of the information in this article should be construed as professional legal advice. For more information on compliance with CAN-SPAM, see the FTC’s CAN-SPAM Act: A Compliance Guide for Business.
To learn more about email compliance, email deployment, and other industry insights, check out our full blog here.
