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
Import up to 100 emails with no sign-up required. Try it free →