Welcome to Quarter 2. Technical foundations keep your infrastructure clean. List management keeps your audience clean. And a clean audience is the single biggest factor in long-term deliverability.
This Week’s Lesson
Permission marketing is a concept introduced by Seth Godin in 1999: the idea that the most effective marketing is anticipated, personal, and relevant — sent only to people who have explicitly asked to receive it.
For email, this means your list should consist exclusively of people who actively opted in to hear from you. Not people who gave you their card at a conference. Not people who bought something from you five years ago. Not purchased lists.
Why does permission matter to deliverability? Because inbox providers measure engagement. If you email people who never opened, clicked, or replied to your messages, your engagement rate drops. Low engagement = lower sender reputation = more mail to spam.
The FTC's CAN-SPAM Act (US), GDPR (EU), and CASL (Canada) all have legal requirements around email consent that vary in strictness. GDPR requires explicit, informed, specific opt-in consent and gives recipients the right to withdraw at any time.
Even where the law is lenient, the business case for permission is strong: senders who use permission-based lists see dramatically higher open rates, lower complaint rates, and better long-term deliverability.
The most dangerous email list is the one that 'seemed fine' at the time you built it. Contact databases from trade shows, co-registration schemes, and third-party providers are invisible landmines.