GetESP

GetESP analyzes CSV email lists to identify recipient ESPs and spam protection tools, helping segment lists and choose the right provider for better deliverability.

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Overview

GetESP is a web tool for analyzing email lists to identify the email service provider behind each address and detect whether a domain uses a spam protection tool. The site positions this as a way to segment recipients by ESP before sending.

Its workflow is centered on CSV upload, analysis, and report download. The product is intended to help senders choose a matching ESP when reaching Gmail, Outlook, Yahoo, and other supported providers, which the site says can improve inbox placement and deliverability.

Features

CSV list analysis

Upload a CSV of email addresses and domains, then run an analysis against the supported ESP and spam-filter database.

ESP identification

Detect the recipient’s email service provider so you can group addresses by provider such as Gmail, Outlook, or Yahoo.

Spam protection detection

Flag common spam protection tools used by business domains, including filters such as Proofpoint, Mimecast, and Barracuda.

Segmentation by provider

Review segmented results for each address and separate the list into ESP-based groups for sending decisions.

Report export

Download the analysis results for later use in campaign planning or list preparation.

Example CSV

Use an example CSV provided on the site to understand the expected input format before uploading your own list.

Use Cases

Segment an email list by ESP
Prepare a recipient list for provider-matched sending by grouping addresses into Gmail, Outlook, Yahoo, and other supported ESPs before a campaign goes out.
Identify protected domains
Check whether business-domain contacts sit behind spam protection tools that may block or filter messages before they reach a mailbox provider.
Plan sending by recipient provider
Use the analysis results to decide which recipient groups should be sent from a matching ESP to improve inbox placement.
Process large lists more quickly
Review a CSV export from another system and turn it into a deliverability-focused segmenting workflow without manual lookup.

Pros and Cons

Pros

Analyzes a large list of supported ESPs and spam protection tools shown on the site.
Provides a straightforward CSV upload and downloadable report workflow.
Identifies both recipient ESPs and spam filters, which gives more context than ESP matching alone.
Includes an example CSV to help users format their input correctly.

Cons

The pricing page is unavailable in the provided source, so plan details and limits are not clear.
The available evidence shows a CSV-based workflow, but not broader integrations or alternative input methods.
Support for ESPs and spam tools is described as continuously updated, but the exact update process is not documented.

FAQ

What is ESP Matching?

ESP Matching identifies the email service provider behind a recipient address, such as Gmail, Outlook, or Yahoo, so you can decide whether to send from the same provider.

How does GetESP work?

You upload a CSV file with email addresses and domains. GetESP analyzes each row, detects the ESP and any supported spam protection tools, and lets you download the results.

Is there pricing information available?

The site says GetESP is currently free to use. The pricing page returns a 404, so no plan structure or paid limits are shown in the available source.

What file formats or integrations does it support?

The source shows CSV upload as the input and a downloadable report as the output. It does not provide documented integrations beyond that workflow.

Who is GetESP for?

The tool is aimed at people who want to segment recipient lists by ESP and identify spam protection tools that may affect inbox placement and deliverability.

Quick Facts

Category: Email deliverability
Platform: Web app
Primary workflow: Upload CSV, analyze ESPs, download report
Input: CSV files with email addresses and domains
Output: Segmented ESP and spam-filter analysis report
Source domain: getesp.io

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