Troubleshooting: Low Open Rate
Troubleshooting: Low Open Rate
Low open rates usually indicate an issue with deliverability, sender reputation, or subject line effectiveness.
1. Check Deliverability (Most Common Cause)
If emails are not reaching the inbox, they will not be opened.
Verify your domain is properly authenticated (SPF, DKIM, DMARC). You can use MXtoolbox to check your domain's DNS record.
Check if emails are landing in spam or promotions by sending test emails from your campaign
You can also run Spamtester.ai
Review if your sending domain or IP is blacklisted
Review email content and ensure there are only 1–2 attachments or links
Do not add links or attachments in your first email
2. Review Sender Reputation
High bounce rates can damage reputation.
Check weekly analytics to review bounce rate and open rate patterns weekly
Check the campaign’s bounce rate; it should be below 2%
Verify Emailsbefore sending
Sudden volume spikes can trigger filtering. Make sure to set daily limits
3. Analyze Subject Lines
Even with good deliverability, weak subject lines reduce opens.
Avoid overly salesy or spam-like wording
Test shorter, clearer subject lines
Personalization can improve open rates
Avoid excessive punctuation or capitalization
4. Check Audience Quality
If targeting is too broad or outdated, engagement drops.
Remove invalid or inactive emails
Segment by relevance or intent
Avoid cold, unverified lists
5. Sending Behavior
Email platforms may filter based on behavior patterns.
Avoid sending too many emails too quickly
Keep consistent sending patterns
Ensure proper warm-up for new domains