Inbox Placement Predictor
Predict whether your cold emails will land in the inbox or spam folder based on key deliverability factors.
Answer all 8 questions to get your inbox placement prediction
Are SPF, DKIM, and DMARC properly configured?
Email authentication is fundamental to inbox placement
How old is your sending domain?
New domains are viewed with suspicion by email providers
Has your email account been properly warmed up?
Gradual volume increase builds sending reputation
What is your typical bounce rate?
High bounce rates severely damage sender reputation
How were your email addresses sourced?
List quality directly impacts deliverability
How would you rate your email content?
Spam triggers and formatting affect placement
What is your daily sending volume per inbox?
Staying within limits prevents throttling
What are your typical engagement rates?
Opens, replies, and clicks signal legitimacy
Understanding Inbox Placement
Inbox placement rate (IPR) measures the percentage of emails that land in the primary inbox versus spam or promotions folders. For cold email, this metric is crucial - if your emails don't reach the inbox, nothing else matters.
Key Factors Affecting Inbox Placement
- Email authentication: SPF, DKIM, and DMARC prove your identity to receiving servers.
- Domain reputation: Built over time based on sending history and engagement.
- Sending patterns: Consistent, gradual volumes are preferred over spikes.
- Content quality: Spam-like content or formatting triggers filters.
- List quality: Bounces and complaints signal poor practices.
Inbox vs. Spam: The Deciding Factors
Email providers use complex algorithms considering hundreds of signals. However, some factors carry more weight: authentication (pass/fail), sender reputation (historical performance), and engagement (how recipients interact with your emails).
Improving Your Inbox Placement
- Complete proper email warmup before scaling
- Verify email addresses before sending
- Monitor and maintain low bounce rates (<2%)
- Track engagement and remove non-responders
- Avoid spam trigger words and excessive formatting
- Use dedicated IPs for high-volume sending
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