Why Are Your Emails Going to Spam?
Sender reputation, spammy content, poor list hygiene and missing authentication can all send your emails to spam. Here's how to fix each one.
You write a great email, hit send, and it lands straight in your recipient's spam folder. It happens to businesses of every size. This guide explains why emails go to spam and what you can do to reach the inbox.
The dilemma of the spam folder
An email in the spam folder is not lost, but it is rarely read. Email service providers such as Gmail and Outlook use complex filters to separate legitimate messages from unwanted or harmful ones, and they are deliberately cautious.
Possible reasons your emails go to spam
1. Poor sender reputation
If providers repeatedly see your messages as spammy or low quality, or recipients mark them as spam, future emails from your domain are more likely to be filtered.
2. Content triggers
Excessive exclamation marks, words like "free" or "guarantee", exaggerated sales language and misleading subject lines all raise red flags.
3. Poor email hygiene
Sending to old, inactive or purchased lists damages your reputation quickly. Always get permission before sending promotional email.
4. Technical issues
Missing or misconfigured email authentication (SPF, DKIM and DMARC), sending from a blacklisted IP address or using poorly configured mail servers can all lead to blocked messages.
Tips for better email deliverability
- Build your reputation: send relevant content only to people who opted in, and never buy email lists.
- Optimise your content: write honest subject lines and useful messages, and avoid spam trigger words.
- Keep your list clean: remove inactive subscribers regularly and use double opt-in to confirm consent.
- Authenticate your domain: set up SPF, DKIM and DMARC records correctly.
- Monitor and test: track open rates, click-through rates and spam complaints so you catch problems early.
- Stay informed: providers update their filters regularly, so keep up with best practice.
Summary
The spam folder is not inevitable. Focus on sender reputation, content quality, list hygiene and correct technical set-up, and more of your emails will reach the inbox. Need help with email set-up or campaigns? Our digital marketing team can help.
