What Is a Transactional Email? A Simple Definition
Understand what a transactional email really is, and how it differs from a non-transactional (marketing) email, in plain, beginner-friendly language.
Definition
A transactional email is a specific type of email sent automatically to a user in response to an action they took on a website or an application. These emails are called “transactional” because they’re triggered by specific transactions or interactions, such as purchases, sign-ups, account confirmations, password resets, and so on.
These emails are generally considered important, because they deliver essential information to users, like transaction confirmations or event reminders. They also help build and maintain trust with your users, since they offer direct, personalized communication.
So what are NON-transactional emails?
In contrast to transactional emails, non-transactional emails, often called marketing emails, are sent to lists of subscribers with the goal of promoting products, services, special offers, news or any other content relevant to the recipients. You’ve all received them before, and you probably still get them regularly in your inbox. Unlike transactional emails, which are triggered by specific user actions, marketing emails are sent on a planned, targeted basis by companies to reach a broad audience, notably through bulk email services like Brevo, which I recommend anyway for setting up the transactional emails coming out of WordPress, and which also, and above all, lets you send non-transactional emails.
These emails are often designed to spark interest, engagement and action from their recipients, but they aren’t tied to any specific transaction the user carried out.
FAQ
What's the difference between a transactional email and a newsletter?
A transactional email answers a specific action you just took: a purchase, a sign-up, a password reset. A newsletter, on the other hand, goes out on a schedule to your whole list to inform or promote, with no link to any single action. One is triggered by you, the other by the sender.
Do I need consent (GDPR / opt-in) to send a transactional email?
No. Unlike marketing email, a transactional email doesn't require prior consent: it accompanies a transaction the person started themselves, so it's expected and legitimate. Be careful, though, not to slip promotional content into it, or it falls under the marketing rules and becomes subject to opt-in again.
How do I send transactional emails? Which service should I use?
Don't send these emails from your web host's built-in mailbox: deliverability there is far too fragile. I recommend going through a dedicated service like Brevo, connected to WordPress via WP Mail SMTP. Your confirmations and password resets then leave from reliable infrastructure, with proper authentication and delivery tracking.
Why do my transactional emails land in spam?
Usually because your domain isn't authenticated: without SPF, DKIM and DMARC records set up correctly, mailboxes get suspicious. Sending from a poorly reputed shared server makes it worse. By routing through a dedicated sending service that signs your emails, you get back into the inbox fast.
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