SaaS magic link / login code email examples

The subject lines stay close to the immediate action. Brand-plus-code formulas appear in Notion’s "Your Notion signup code" and Egoist Machines’ "Your Egoist login code". Imperatives form another clear group, including Perplexity’s "Sign in to Perplexity" and Miro’s "Sign in to Miro". Other brands make the request explicit, as in AssemblyAI’s "Your login request to AssemblyAI".

Codes sometimes move into the subject itself. VEED includes a code in "Your login code to VEED: 58242", while OneCLI uses "Your OneCLI code is 036556". This keeps the message identifiable in an inbox, but the median subject line is still just 23 characters. For your own email, put the product and access action first, then add the code only when it helps recognition.

The preview text that appears in these emails is operational rather than promotional. sync. repeats its subject in the preview: "722785 is your sync. labs verification code". Circleback uses its preview to put the next step and code in view: "Use the code 877084 to log in to Circleback." Both choices help the recipient understand the email before opening it.

The body content follows the same narrow purpose. Notion and Perplexity provide both a sign-in route and a code, while Miro, Kestroll, and Voker center the message on a passwordless link. Several emails state that the credential expires soon, and several tell recipients to ignore the message if they did not request it.

All 20 emails in this collection are magic link or login code emails, so none introduces a discount, upgrade pitch, or other promotional incentive. The call to action is simply to sign in, finish signup, or enter a temporary code. Notion’s signup email is a useful example because it supports both completing workspace signup and accessing the account.

A single CTA appears in 55% of all the emails in this collection. Plain text appears in the same share, including the Notion login-code email, Descript, and both MinusX emails. The remaining messages do not need a heavily designed path to explain the task. AssemblyAI is the visual exception among the named examples: its purple email uses one CTA and includes a fallback link, while its access link remains the central action.