Frequently asked questions

What is the purpose of this email?
This email authenticates users during Substack login by delivering a time-sensitive verification code with a backup link option to confirm account access.
Why include both a numeric code and a backup verification link?
The dual approach accommodates different user preferences—some users prefer copying codes while others prefer clicking links—reducing friction and improving completion rates.
How does urgency messaging strengthen this email's effectiveness?
Urgency messaging encourages immediate action before code expiration, which is critical for time-sensitive transactional flows where delays cause abandonment.
When should this email template be used?
Use this template for any account verification or two-factor authentication flow where a time-limited code must be delivered securely to confirm user identity.