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Documentation Index

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A clean audience is the single biggest lever for email deliverability. Brew enforces hygiene automatically and gives you the tools to keep your list healthy long-term.

Better deliverability

Clean lists have lower bounce rates and higher inbox placement.

Higher engagement

Engaged subscribers open, click, and convert. Disengaged ones drag down everything.

Compliance

Helps you stay aligned with CAN-SPAM and other regulations.

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How Brew protects your sending reputation

Brew runs proprietary compliance checks on every contact and every send. These run in the background. You don’t need to do anything.
Every contact added to Brew, via CSV, API, integrations, or manual entry, is verified. Invalid addresses, spam traps, and risky contacts are flagged or suppressed before you ever send to them.
Brew continuously tracks three metrics across your sends:
  • Bounce rate. Keep below 2%
  • Spam complaint rate. Keep below 0.08%
  • Contact quality. Proportion of verified, deliverable contacts in your audience
If any threshold is consistently exceeded, Brew pauses your sending automatically to protect your reputation. You’ll be notified with clear steps to resolve the issue before sending resumes.
These checks protect everyone on the platform. A single user with poor list quality can affect shared sending infrastructure. Enforcing standards automatically keeps deliverability high for all customers, including you.

Manage contacts

Understand verification, the suppression list, and how Brew handles bounces and unsubscribes.

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Building a quality audience

The foundation of good hygiene is how you collect contacts in the first place.
Be explicit about what subscribers will receive and how often. Transparency reduces unsubscribes.On your sign-up forms:
  • Be specific about email content and frequency
  • Set clear expectations
  • Offer real value in exchange for the email
Adding CAPTCHA prevents bot signups and keeps your audience real. A few options with different tradeoffs:
With Brew, you can only email people who explicitly opted in. Purchased lists:
  • Contain stale or invalid addresses
  • Haven’t consented to your emails
  • Drive up bounce and complaint rates
  • Can result in account suspension
Grow your list organically.

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Monitoring engagement

Beyond Brew’s automatic checks, monitor engagement to spot trends early.
1

Track engagement metrics

Watch:
  • Open rates
  • Click rates
  • Bounce rates
  • Unsubscribe rates
See your Analytics dashboard for trends over time.
2

Build engagement-based audiences

Use AI to segment by engagement:
  1. Open the Audience tab
  2. Use the AI prompt: “Contacts who opened or clicked an email in the last 3 months”
  3. Save it as your primary sending audience for regular campaigns
Audiences in Brew are dynamic. Contacts move in and out automatically as their behavior changes.
3

Identify inactive contacts

“Contacts who haven’t opened or clicked in 90 days but were active before.”These are candidates for re-engagement.

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Re-engaging inactive subscribers

When contacts go quiet, you have two options: try to bring them back, or stop sending to them.

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Step 1. Build a clean sending audience

Create a dynamic audience for regular campaigns that includes only engaged contacts:
“Contacts who have opened or clicked an email in the last 6 months.”
Use this as your default audience for marketing campaigns. The audience updates automatically as engagement changes.

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Step 2. Pick a re-engagement method

  1. Go to Home and start a campaign
  2. Select your inactive audience
  3. Prompt:
“Create a re-engagement email with a subject line about missing the recipient, acknowledging their inactivity, reminding them of our value, and including a clear CTA to stay subscribed.”
After sending, watch who re-engages. Add openers/clickers to your active audience. For non-responders, consider one final attempt or remove them from regular sends.

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A long-term hygiene routine

Rather than cleaning your list once, build a recurring routine.
Keep three dynamic audiences:
  • Highly engaged. Opened/clicked in the last 30 days
  • Moderately engaged. Opened/clicked in the last 90 days
  • At risk. No opens in the last 60 days but previously active
Tailor content and frequency to each tier.
Define what “inactive” means for your business (e.g. no opens for 6+ months). Either exclude these contacts or significantly reduce their email frequency. Send a final “we miss you” before removing them.
  • Monthly: “Analyze my bounce rate trends over the last month.”
  • Quarterly: “Build a re-engagement campaign for subscribers inactive 90+ days.”
  • Bi-annually: “Analyze which audience segments are most likely to convert.”
  • Bounce rate. Under 2%
  • Spam complaint rate. Under 0.08%
  • Open rate. Significant drops from baseline indicate problems
Persistent breaches will cause Brew to pause your sending. Address issues before they get there.

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