Email Deliverability Troubleshooting for Agencies

If your agency's emails are landing in spam folders or not reaching inboxes, it can hurt your client campaigns. This guide will help you find and fix those problems. We'll look at common reasons emails don't get delivered and how to make sure they reach the right place.

Why Emails Go Missing: Common Problems

Emails can go undelivered for many reasons. Think of it like sending a letter. If the address is wrong, or the post office thinks it's junk mail, it won't arrive. For emails, the "address" is the sender's reputation, and the "post office" is the email server.

Here are the main reasons emails don't get delivered:

• Bad Sender Reputation: If your agency or your client has sent spam before, email providers like Gmail or Outlook remember that. They'll be more likely to send your future emails to spam.
• Missing Authentication: This is like a special stamp that proves your email is real. Without it, email providers might think your email is fake.
• Poor Email Content: Certain words, too many links, or bad formatting can make emails look like spam.
• Dirty Email List: Sending emails to old, fake, or uninterested addresses is a big red flag. It tells email providers that you might be a spammer.
• Technical Glitches: Sometimes, there are small technical issues with your email setup that prevent delivery.

Step-by-Step Troubleshooting Checklist

When emails aren't delivering, go through this checklist. It covers the most common problems agencies face.

1. Check Your Email Authentication

This is critical. Email authentication tells other email servers that your emails are legitimate. It helps build trust.

• SPF (Sender Policy Framework): This record lists which mail servers are allowed to send emails from your domain.
  • How to check: Use an online SPF record checker. Look for your domain's SPF record.
  • What to fix: Make sure all servers you use to send email (like your CRM, marketing platform, etc.) are listed in your SPF record. If you use a service like a connected agency platform for client email, ensure its sending servers are authorized.
• DKIM (DomainKeys Identified Mail): This adds a digital signature to your emails. It proves the email hasn't been changed since it left your server.
  • How to check: Send an email to a test address and view the "original message" or "header details." Look for a "DKIM-Signature" line.
  • What to fix: Your email service provider usually helps set this up. Follow their instructions carefully.
• DMARC (Domain-based Message Authentication, Reporting & Conformance): This tells email providers what to do if an email fails SPF or DKIM checks (e.g., quarantine it, reject it).
  • How to check: Use an online DMARC checker.
  • What to fix: Start with a "p=none" policy to just monitor. As your SPF and DKIM are solid, you can move to "p=quarantine" or "p=reject."

Why this matters for agencies: Each client might have their own domain and email setup. You need to ensure proper authentication for each client's domain you send from.

2. Review Your Email Content

The words and structure of your emails can trigger spam filters.

• Avoid Spammy Words: Words like "free," "winner," "guarantee," "cash," "urgent," or excessive exclamation marks can be red flags.
• Balance Text and Images: Too many images and not enough text can look suspicious. Aim for a good balance.
• Clear Subject Lines: Make them relevant and honest. Avoid clickbait.
• Personalization: Address the recipient by name if possible. This makes emails feel less like mass spam.
• Working Links: Ensure all links work and go to reputable websites. Don't use shortened links too often, as they can be associated with spam.
• Plain Text Version: Always include a plain text version of your email. Some email clients can't display HTML, and having a plain text fallback helps.
• Easy Unsubscribe: Make it very easy for people to unsubscribe. This is not just good practice; it's often a legal requirement (e.g., FTC CAN-SPAM Act). If people can't unsubscribe easily, they'll mark your email as spam.

Important Note on Compliance: For business emails, make sure you follow rules like the FTC CAN-SPAM Act: https://www.ftc.gov/business-guidance/resources/can-spam-act-compliance-guide-business. For political campaign calls and texts, the FCC has rules: https://www.fcc.gov/rules-political-campaign-calls-and-texts. Always verify current requirements with your provider or legal counsel, as rules can change.

3. Clean Up Your Email List

Sending to a bad list is one of the quickest ways to ruin your sender reputation.

• Remove Bounced Emails: If an email address bounces (meaning it couldn't be delivered), remove it immediately. Hard bounces (permanent failures) are especially damaging.
• Identify Inactive Subscribers: If someone hasn't opened or clicked your emails in a long time (e.g., 6-12 months), consider removing them or sending them a re-engagement campaign.
• Avoid Purchased Lists: Never buy email lists. These lists often contain old, fake, or spam trap addresses, which will destroy your reputation.
• Use Double Opt-in: This means people confirm their subscription after signing up. It ensures they genuinely want your emails and reduces fake sign-ups.
• Segment Your Lists: Send relevant content to specific groups of people. This increases engagement and reduces spam complaints.
• Monitor Spam Complaints: Keep an eye on how many people mark your emails as spam. A high rate is a serious problem.

Agencies often manage lists for multiple clients. Keeping these lists clean and separate is crucial. a connected agency platform's client workspace feature can help agencies manage distinct contact records and email lists for each client, preventing cross-contamination of reputation issues.

Monitoring and Maintaining Good Deliverability

Email deliverability isn't a one-time fix; it's an ongoing process.

• Use Deliverability Tools: Many email service providers offer tools to check your deliverability, monitor blacklists, and see how your emails are performing.
• Sender Reputation Monitoring: Regularly check your sender reputation using online tools. This gives you an idea of how email providers view your sending practices.
• Warm Up New IP Addresses: If you start sending from a new IP address, don't send a huge volume of emails right away. Gradually increase the volume to build a good reputation.
• Segment and Personalize: Continue to segment your audience and personalize your messages. This leads to higher engagement and fewer spam complaints.
• A/B Test Your Emails: Test different subject lines and content to see what works best for your audience. Higher open rates and click-through rates tell email providers your emails are valuable.
• Stay Updated: Email providers constantly update their spam filters. Stay informed about best practices. Check out resources like this one on email sender reputation.

When to Seek Expert Help

If you've gone through all these steps and are still facing major deliverability issues, it might be time to get help from a deliverability expert. They can do a deep dive into your setup and identify complex problems.

For agencies, managing email deliverability across multiple client accounts can be complex. Using a platform that centralizes client communication, like the platform, can simplify the management of email settings and help maintain consistent best practices across all your clients. This allows you to focus on content and strategy, while the platform helps streamline the technical aspects.

Next Steps

Start by checking your email authentication records (SPF, DKIM, DMARC) for all domains you send from. This is the foundation of good email deliverability.