Deliverability Basics for EngageBay Email Users: Authentication & Engagement

Introduction

Sending emails is only half the battle – getting them into the inbox is the real challenge. For EngageBay users, mastering deliverability means combining solid authentication with genuine audience engagement. In this guide, we break down the essentials you need to know to boost inbox placement and keep your campaigns thriving.

Why Deliverability Matters

Even the most beautifully crafted email will fall flat if it lands in the spam folder. Poor deliverability hurts open rates, reduces lead generation, and can damage your domain reputation. By focusing on two core pillars – authentication and engagement – you create a strong foundation that ESPs trust.

Authentication: Prove You’re Legit

1. SPF (Sender Policy Framework)

• What it does: Confirms which servers are authorized to send email on behalf of your domain.
• How to set up in EngageBay: Add a TXT record to your DNS with the value provided in the Settings → Email Authentication section.
• Tip: Keep the SPF length under 255 characters to avoid DNS lookup limits.

2. DKIM (DomainKeys Identified Mail)

• What it does: Adds a cryptographic signature to each outgoing message, proving it wasn’t tampered with.
• Setup steps:
  1. Generate the DKIM key pair in EngageBay.
  2. Add the public key as a TXT record (e.g., default._domainkey.yourdomain.com).
  3. Enable DKIM signing in the platform.
• Best practice: Use a 2048‑bit key for stronger security.

3. DMARC (Domain-based Message Authentication, Reporting & Conformance)

• What it does: Instructs receiving servers on how to handle messages that fail SPF/DKIM and provides reporting.
• Simple policy to start: v=DMARC1; p=none; rua=mailto:postmaster@yourdomain.com
• Gradually move to p=quarantine or p=reject once you’re confident your legit mail passes authentication.

Engagement: Show Receivers You’re Worth Listening To

1. List Hygiene

• Remove hard bounces within 24‑48 hours.
• Segment inactive subscribers and run re‑engagement campaigns before deleting them.
• Use EngageBay’s built‑in email verification tool to catch typos and role‑based addresses.

2. Content Relevance

• Personalize subject lines with the recipient’s name or company.
• Keep the pre‑header concise and aligned with the subject.
• Limit image‑to‑text ratio to 40 % and include a plain‑text fallback.

3. Sending Frequency & Consistency

• Start with 1‑2 emails per week for new lists; adjust based on engagement metrics.
• Avoid sudden spikes in volume – ISPs view them as suspicious.
• Leverage EngageBay’s automation to space out drip sequences evenly.

4. Interaction Signals

• Open rates, click‑throughs, and replies are positive signals for ISPs.
• Encourage replies with clear CTAs (“Reply with any questions”).
• Monitor spam complaints; keep them below 0.1 %.

Putting It All Together: A Simple Checklist

1. Verify SPF, DKIM, and DMARC records are published and pass tests.
2. Clean your list (remove bounces, invalid domains, and disengaged contacts).
3. Segment based on recent activity and send targeted content.
4. Use a clear, personalized subject line and concise pre‑header.
5. Include a plain‑text version and keep images < 40 % of the email.
6. Track open, click, and reply rates; adjust frequency accordingly.
7. Review ISP feedback reports (DMARC aggregate reports) monthly.

FAQ

What if my SPF record exceeds the limit?

Combine multiple sending services into a single include statement or use a sub‑domain for each service to stay under the 10‑lookup limit.

How often should I rotate my DKIM keys?

Rotate every 6‑12 months for optimal security, especially if you suspect a key compromise.

Can I send newsletters without a DMARC policy?

Yes, but you’ll miss out on valuable reports and risk higher spam placement. Set p=none initially, then tighten the policy.

What’s a good open‑rate benchmark for EngageBay?

Industry averages range from 20‑25 %. Aim above 25 % for a healthy, engaged list.

How do I reduce spam complaints?

Only email contacts who opted in, provide an easy unsubscribe link, and avoid deceptive subject lines.

Conclusion & Call to Action

Deliverability isn’t a one‑time setup; it’s an ongoing cycle of authentication, list care, and relevance. By implementing the steps above, EngageBay users can consistently land in the inbox, boost engagement, and drive more conversions.

Ready to improve your email deliverability? Log in to EngageBay, run the authentication wizard, and start a 30‑day re‑engagement campaign today.