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Email spam
checker

Analyze email content for spam triggers and improve deliverability. Get actionable recommendations to avoid spam filters and reach the inbox.

Understanding spam detection

Spam filters use complex algorithms to analyze email content, sender reputation, and user behavior. Understanding these systems helps you create content that reaches the inbox consistently.

Common triggers

Excessive capitalization

Using ALL CAPS or too many exclamation marks looks unprofessional.

Spam keywords

Terms like "free", "guarantee", "winner" trigger filters.

Poor formatting

Excessive punctuation, colors, or hidden text raises red flags.

Suspicious links

URL shorteners and IP addresses instead of domains.

Best practices

Write naturally

Use proper grammar, spelling, and conversational tone.

Provide value

Focus on helpful content rather than pure sales messaging.

Test regularly

Check content before sending to large lists or campaigns.

Build reputation

Consistent sending patterns and engagement improve deliverability.

Improve your email content

InboxKit helps you avoid spam filters and reach the inbox consistently