Email copy is persuasive writing delivered to the reader’s inbox. It is the most personal form of copywriting — the reader has given the sender permission to write to them, and the copy appears alongside messages from friends and colleagues, not alongside ads.
Email copy has three sequential decision points, each controlled by a different piece of text:
- Subject line — determines whether the email is opened. It functions like a headline: it must promise something specific enough to be worth the reader’s time. Subject lines that are vague (“Quick update”), deceptive (“RE: your request”), or manipulative (“URGENT”) may earn an open but damage trust.
- Preview text — the first line visible in the inbox before the reader opens. It should extend the subject line’s promise, not repeat it. Together, the subject line and preview text form the email’s above-the-fold content.
- Body and CTA — the email itself. Each email should make one point and ask for one action. An email that asks the reader to read a blog post, check out a new feature, and fill out a survey will often produce none of these responses. One message, one call to action.
The most common email copy failure is writing from the sender’s perspective. “We’re excited to announce…” is about the sender. “You can now…” is about the reader. Janice Redish’s principle of web writing as conversation applies directly: the reader came to the email with a question (“Why should I care about this?”), and the copy should answer it immediately [@redish2012].
Email sequences — automated series of emails triggered by a reader’s action — apply direct response principles over time. Each email in a sequence has a role: introduce, educate, differentiate, offer, remind. The sequence mirrors the reader’s decision process rather than the sender’s marketing calendar.
Related terms
- headline — the subject line is the email’s headline
- call to action — each email should have exactly one
- direct response — email marketing is a direct-response channel
- brand voice — email copy must maintain voice consistency across messages
- microcopy — unsubscribe links, footer text, and preheaders are email microcopy