IP address analysis

IP address analysis lets you look up any sending IP address and see how it performs: deliverability score, mail volume over time, which brands use it, and how mail from that IP is distributed across inbox, promotions, and spam.

What you see for an IP

• Deliverability score — An overall score for the IP based on placement, reputation, and related signals.
• Mail volume history — How much mail was sent from this IP over time (e.g. by day or month), so you can spot spikes or drops.
• Brand usage — Which brands send from this IP and how many; useful for shared vs dedicated IP analysis.
• Deliverability breakdown — Share of mail landing in inbox, promotions, and spam (and by provider when available).
• Sending domains — Domains that have been used with this IP, with volume or status where available.

Tip

Use IP analysis to diagnose underperforming IPs, plan IP warm-up, or see how shared IPs are used across brands. A single low-reputation sender on a shared IP can affect all brands using it.

Looking up an IP

1. Open IP address in the app

   Click IP address in the left sidebar menu to access the IP analysis section.

2. Search for an IP

   Enter the IP address in the search field. You can look up any IP — not just your own sending IPs.

3. Review the detail view

   Click the IP to open the detail page with deliverability score, mail volume history, brand usage breakdown, and sending domains.

4. Cross-reference with your deliverability data

   Compare this IP’s performance against your Deliverability dashboard to see if poor IP performance correlates with placement drops.

Where to find it in the app

Go to IP address (or the IP analysis section) in the app. You can:

• Browse or search — See a list of IPs (e.g. those that have sent mail in your scope) or search for a specific IP.
• Open an IP detail page — Click an IP to see its deliverability score, mail volume history, brand usage, breakdown, and sending domains.

Data is based on mail processed by InboxEagle; the more you send through connected sources (e.g. SES with optional Bot Finder), the richer the IP view.

Using IP data for deliverability

Shared IP

On a shared IP pool (typical for high-volume ESPs on default plans), multiple senders share the same IP. One bad actor on the pool can degrade reputation for everyone.

• Check Brand usage to see who else sends from this IP.
• If the IP has a low score and you share it with many brands, consider requesting a dedicated IP from your ESP.
• Monitor reputation trend over time — shared IP scores fluctuate more than dedicated ones.

Dedicated IP

A dedicated IP is exclusively yours. Reputation is driven solely by your sending behavior.

• Dedicated IPs require warm-up — starting low and gradually increasing volume. Jumping straight to high volume triggers spam filters.
• Use the Mail volume history chart to verify your warm-up ramp is progressing correctly.
• If score drops on a dedicated IP, the cause is entirely within your program (list quality, authentication, complaint rate).

Next steps

Deliverability Brand-level deliverability and authentication.

Google Postmaster Domain and IP reputation from Postmaster.