Shared IP
Shared IP: Sending infrastructure pooled across many customers, blending their reputations.
Definition
Sending infrastructure pooled across many customers, blending their reputations.
Why it matters in practice
The default at ESPs and the reason they police list quality: every customer's complaint rate is a threat to every other's delivery.
Related terms
Email Blacklist (DNSBL) · Bounce Rate · Email Database · full glossary
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What is shared ip?
Sending infrastructure pooled across many customers, blending their reputations.
Why does shared ip matter?
The default at ESPs and the reason they police list quality: every customer's complaint rate is a threat to every other's delivery.
APA
B2B Data Index Research Team. (2026). What Is Shared IP? Definition & Why It Matters (2026). B2B Data Index. https://b2bdataindex.com/glossary/shared-ip/
Markdown
[What Is Shared IP? Definition & Why It Matters (2026)](https://b2bdataindex.com/glossary/shared-ip/) — B2B Data Index, 2026