Email Deliverability: Why Your Cold Emails Bounce
Bad data kills deliverability. Understand why emails bounce and how verified enrichment data can save your sender reputation.
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Introduction
A bounce rate above 5% can get your domain blacklisted within days. Here’s why it happens and how to fix it before the damage becomes irreversible.
The 3 Types of Bounces
Hard Bounce
The address doesn’t exist. Remove it from your list immediately. Impact: Immediate reputation damage.
Soft Bounce
The mailbox is full or the server is temporarily unavailable. Retry in 24–48h. Impact: Cumulative reputation damage.
Spam Bounce
Your domain or IP is blacklisted. Critical situation. Impact: You never even know it happened.
Most Common Causes
- Purchased or unverified lists
- Missing SPF / DKIM / DMARC configuration
- Content triggering spam filters
- Sending volume too aggressive (no warm-up)
How Datagma Helps
Before importing a list into your email tool, run it through Datagma. Every address is verified in real time, invalid ones are filtered out, risky ones are flagged.
Verify Your List for Free
The free plan includes 90 verified emails per month, no credit card required. Try it free →