100% Free Monitoring

Protect your reputation with blacklist monitoring

Monitor your IP addresses and domains against major email blacklists, so you can spot issues early, act fast, and resolve them before deliverability suffers.

IP Address or Domain Name
Peace of Mind

Don't let blacklist issues
break your email flow

A blacklisted IP or domain can lead to blocked emails, lower deliverability, and missed communication with customers. Maileroo helps you stay ahead with blacklist monitoring and a reliable email delivery platform built to keep important messages moving.

100% Free Monitoring
Maileroo's Email Blacklist Checker and Monitoring Tool is free to use. No credit card is required.
Email Alerts in Real-Time
Monitor blacklist status with automatic checks and clear alerts so you can act before delivery issues spread.
Multi-RBL Monitoring
Check your IP addresses and domains against popular email blacklists that can affect deliverability.
Blacklist Protection

Catch blacklist issues before they affect delivery

Monitor blacklist status for free, with automatic checks and clear alerts so you can act before delivery issues spread.

Monitor key blacklists

Check your IP addresses and domains against popular email blacklists that can affect deliverability.

Get notified when something changes

Receive alerts when an IP or domain appears on a blacklist, or when a listed issue has been resolved.

Run automatic or manual checks

Use automatic monitoring every few hours, or run an on-demand check whenever you need a quick status update.

Keep email problems visible

Blacklist issues can quietly affect sending. Maileroo gives you a clearer way to see what is happening.

Start monitoring your IPs and domains today
Start Monitoring
FAQ

Frequently Asked Questions

How blacklist checks work, what a listing means for deliverability, and what to do if your IP or domain appears on a list.

An email blacklist is a list of IP addresses or domains that receiving servers treat as a spam risk. If your sending IP or domain appears on a major list such as Spamhaus, Barracuda, or Spamcop, more of your mail lands in junk or is rejected outright.

Enter a domain or IP and the tool checks it against major real-time blacklists. You can then turn on monitoring so you get alerted if a listing appears, instead of finding out after delivery has already dropped.

Yes. Lookups are free and do not require an account. Monitoring is available so listings do not stall delivery once you start sending through Maileroo.

Stop the traffic that caused the listing, confirm SPF, DKIM, and DMARC are aligned, then request delisting from the list operator. Maileroo support can help review bounce logs and sending reputation if you send through our network.

Features

Crafted for a Delightful Email Experience

Everything behind reliable delivery at any volume: sending, verification, routing, and the analytics to see what happened, from first API call to millions a month.

SMTP Relay

Send transactional and bulk emails through reliable SMTP infrastructure built for speed, security, and deliverability.

View More

Email API

Integrate email delivery into your applications using powerful APIs built for flexibility, scalability, and performance.

View More

Streams

Separate transactional and marketing traffic into isolated sending streams to protect reputation and keep critical emails fast.

View More

Inbound Routing

Receive and route incoming emails directly into your applications using flexible automation and processing workflows.

View More

Email Marketing

Create and deliver marketing campaigns designed to increase engagement, reach, and customer retention.

View More

Webhooks

Receive real-time event notifications for deliveries, opens, and clicks for storage and automation workflows.

View More

Analytics

Monitor email performance with detailed insights, reporting tools, and actionable delivery metrics in real time.

View More

Dedicated IPs

Gain greater sending control with dedicated IPs designed for consistency, reputation, scalability, and reliability.

View More

Developer SDKs

Build integrations faster using SDKs, code examples, and resources for modern application development.

View More
Get Started
Contact Us
Ready to Move Your Email to Maileroo?
Migrating is usually the part people dread. It shouldn't be: add the DNS records, change the credentials in your app, and send. Our team is around if you want a second pair of eyes on the setup.