• Company
    • About Us
    • Case Studies
    • Press Center
    • Events
    • Careers
    • Blog
    • Contact us
  • Contact us
  • Login
 
  • English
    • Deutsch
    • Español
    • Français
    • Italiano
    • Português
Paessler
                    - The Monitoring Experts
  • Products
    • Paessler PRTG
      Paessler PRTGMonitor your whole IT infrastructure
      • PRTG Network Monitor
      • PRTG Enterprise Monitor
      • PRTG Hosted Monitor
      • PRTG extensionsExtensions for Paessler PRTGExtend your monitoring to a new level
    • Icon Features
      FeaturesExplore all monitoring features
      • Maps & dashboards
      • Alerts & notifications
      • Multiple user interfaces
      • Distributed monitoring
      • Customizable reporting
  • Solutions
    • Industries
      IndustriesMonitor various industry sectors
      • Industrial
      • Healthcare
      • Data Center
      • Education
      • Finance
      • Government
    • IT Topics
      IT TopicsMonitor all areas of IT
      • Network Monitoring
      • Bandwidth Monitoring
      • SNMP Monitor
      • Network Mapping
      • WiFi Monitoring
      • Server Monitoring
  • Pricing
  • Resources
    • Getting Started
      Getting StartedModules for self-paced learning
    • How-to Guides
      How-to GuidesGet the most out of PRTG
    • Videos & Webinars
      Videos & WebinarsLearn from Paessler experts
    • IT  Knowledge
      IT KnowledgeExpand your IT knowledge
    • PRTG Manual
      PRTG ManualFull documentation
    • Knowledge Base
      Knowledge BaseShare community knowledge
    • PRTG Sensor Hub
      PRTG Sensor HubGet sensors, scripts & templates
    • Trainings
      PRTG TrainingLearn how to work with PRTG
  • Partners
    • icon star
      New Partners and MSPBecome a new partner or MSP
    • icon partner
      Partner PortalLog in to your partner account
    • icon search
      Find a PartnerFind partners selling Paessler products
    • icon technology
      Technology AlliancesSee Paessler technology partnerships
  • Company
    • About Us
    • Case Studies
    • Press Center
    • Events
    • Careers
    • Blog
    • Contact us
  • Contact us
  • Login
  • English
    • Deutsch
    • Español
    • Français
    • Italiano
    • Português
  • Get a quote
  • Free trial
  1. Home>
  2. IT Topics>
  3. Technology>
  4. POP3 Monitoring
PRTG Logo

POP3 Monitoring with PRTG

Boost productivity by keeping your team connected and efficient

  • Ensure business emails are properly sent and received
  • Keep a constant eye on the response time of your POP3 server and mailboxes
  • Check mail server health and performance round the clock
Free download
product overview

Our users give top ratings for monitoring with Paessler PRTG

Gartner peer insights
spiceworks
Capterra
G2
Trustpilot

PRTG POP3 monitoring: What you will find on this page

Table of content
  • Master email retrieval dynamics with PRTG
  • What POP3 monitoring looks like in PRTG
  • 4 more reasons why to choose PRTG as your POP3 monitoring tool
  • Explore our preconfigured PRTG sensors for POP3 monitoring
  • POP3 Monitoring: FAQ

PRTG makes POP3 monitoring as easy as it gets

Custom alerts and data visualization let you quickly identify and prevent email sending and retrieval issues.

Free download
PRODUCT OVERVIEW

Master email retrieval dynamics with PRTG

Few companies can afford a disruption in email. Paessler PRTG functions as an early warning system for incoming challenges. Our POP3 monitoring software offers the complete package for overseeing the performance and security of your POP3 servers and other infrastructure. It tracks response times, monitors authentication processes, and provides a 360-degree view of your email system.

icon graph

Decode POP3 performance metrics

Transform complex metrics like email authentication success rates into easily digestible visual data. PRTG is an expert digital analyst, reading vital server metrics in its native language.

Measure response time, tracking how quickly your POP3 server responds to client requests. Gauge server health at a glance with CPU and memory usage monitoring.

icon chat

Fortify POP3 communications

The privacy of email messages is compliance critical. Your mail server couldn’t be in better hands with PRTG. Continuously monitor SSL/TLS encryption to keep all POP3 connections securely encrypted. Track authentication attempts and flagged suspicious activities for review.

PRTG also keeps a close eye on SSL certificate validity, alerting administrators to expiring or invalid certificates well in advance.

icon email

Adapt to diverse email systems

When you have multiple email server environments, compatibility and protocol support are crucial. PRGT’S cross-platform compatibility ensures smooth operation across Windows, Linux, and virtual systems.

Whether you’re using multiple protocols like SNMP, WMI, SSH, POP3, IMAP, or SMTP, or overseeing a complex network of SMPT servers and Exchange servers, PRTG adapts to your specific needs.

icon maps

Visualize POP3 usage insights

Being able to understand the data you’re seeing is as important as seeing the data. PRTG's intuitive dashboards serve as a clear window into your server for better management of your POP3 service.

Transform raw data into actionable insights, converting response times, authentication rates, and encryption statuses into easily understandable visual representations.

What POP3 monitoring looks like in PRTG

Diagnose network issues by continuously tracking the health and performance of POP3 servers and processes. Monitor configurations, and show response time, bandwidth usage per IP address, the number of emails, and other key metrics in real time. Visualize monitoring data in clear graphs and dashboards to identify problems more easily. Gain the overview you need to troubleshoot timeouts.

PRTG screenshot graph live data traffic

Live traffic data graph in PRTG

PRTG Screenshot device tree view

Device tree view of the complete monitoring setup

PRTG screenshot map entire it infrastructure

Custom PRTG dashboard for keeping an eye on the entire IT infrastructure

PRTG screenshot graph live data traffic

Live traffic data graph in PRTG

PRTG Screenshot device tree view

Device tree view of the complete monitoring setup

Start monitoring your POP3 servers with PRTG and see how it can make your network more reliable and your job easier.

Free download
PRODUCT OVERVIEW

IT experts agree: Paessler PRTG is a great solution for IT infrastructure monitoring

PCMag

“All-around winning
 network monitor”

IT Brief

“The real beauty of PRTG is the endless possibilities it offers”

ITPro

“PRTG Network Monitor 
is very hard to beat”

4 more reasons why to choose PRTG as your POP3 monitoring tool

icon time

Get timely notifications wherever you are

PRTG delivers real-time insights and alerts in multiple ways, including push notifications and SMS. In the fast-paced world of email communication, this timely information is crucial.

The system provides up-to-the-minute statistics on your POP3 server's performance, with instant alerts for any irregularities.

icon document

See what real predictive data looks like

Another advantage is PRTG's predictive analysis capabilities. By setting custom thresholds for key metrics, administrators receive alerts before minor issues escalate into significant problems.

This proactive approach helps maintain optimal server performance, reducing downtime and ensuring consistent email retrieval for end-users and solid uptime statistics.

icon adapt

No fuss adaptive, scalable monitoring

PRTG offers adaptive monitoring for environments at scale. Its flexibility allows it to adapt to various email server configurations, supporting different setups, and integrating seamlessly with other email protocols.

This adaptability makes PRTG suitable for a wide range of use cases, from small business email management to enterprise-scale email infrastructures and managed service providers.

icon website

Get a simple, yet sophisticated UI

PRTG combines a user-friendly user interface with advanced capabilities. Despite its sophisticated features, it's designed with ease of use in mind.

The intuitive interface and preconfigured sensors facilitate quick setup, while comprehensive visualization tools make interpreting email system performance straightforward, even for those new to mail server monitoring.

Explore our preconfigured PRTG sensors for POP3 monitoring

PRTG comes with more than 250 native sensor types for monitoring your entire on-premises, cloud, and hybrid cloud environment out of the box. Check out some examples below!

POP3

The POP3 sensor monitors an email server via the Post Office Protocol version 3 (POP3). It can show the following:

  • Downtime
  • Response time
POP3
POP3

IMAP

The IMAP sensor monitors an email server via the Internet Message Access Protocol (IMAP). It checks the content of emails for certain keywords. It can show the following:

  • Response time
  • Number of emails in the defined mailbox
IMAP
IMAP

SMTP&POP3 Round Trip

The SMTP&POP3 Round Trip sensor monitors the time it takes for an email to reach a Post Office Protocol version 3 (POP3) mailbox using the Simple Mail Transfer Protocol (SMTP). It sends an email using the parent device (an SMTP server) and then scans a dedicated POP3 mailbox until the email comes in. It can show the following:

  • Response time of the POP3 server
  • Response time of the SMTP server
  • Sum of the response time of the POP3 server and the SMTP server
SMTP&POP3 Round Trip
SMTP&POP3 Round Trip

Exchange Mailbox (PowerShell)

The Exchange Mailbox (PowerShell) sensor monitors mailboxes of an Exchange server. It can show the following:

  • Number of items
  • Time since the last mailbox login
  • Total size of items
Exchange Mailbox (PowerShell)
Exchange Mailbox (PowerShell)

See the PRTG Manual for a list of all available sensor types.

PRTG is compatible with all major vendors, products, and systems

compatible with all major vendors, products, and systems

PRTG makes POP3 monitoring as easy as it gets

Custom alerts and data visualization let you quickly identify and prevent email sending and retrieval issues.

Free download
PRODUCT OVERVIEW

“The reactivity, know-how, and technical solutions of Paessler are outstanding in every situation. For me, no monitoring tool compares to PRTG.”

Andreas Reimann, Senior Networking Communication Architect
Zurich Airport

“We strive to equip our systems with state-of-the-art technology to safeguard our educational practices for the future. Part of this includes ensuring that all our systems run smoothly at all times. On any given day, we rarely have time to keep an eye on all our systems. We therefore decided to monitor our school’s IT environment with a centralized network monitoring tool.”

Stefan Roschewitz, IT administrator
BBS Holzminden

“We want to include the tool in our set of solutions in order to solve problems more proactively in our technology infrastructure. PRTG has exceeded all our expectations because it is a reliable, extremely easy-to-use solution. There is no doubt that it lives up to the renowned quality of German technology.”

Esbin Saúl Lázaro García, IT Infrastructure and Security Engineer
Hospital El Pilar

“The reactivity, know-how, and technical solutions of Paessler are outstanding in every situation. For me, no monitoring tool compares to PRTG.”

Andreas Reimann, Senior Networking Communication Architect
Zurich Airport

“We strive to equip our systems with state-of-the-art technology to safeguard our educational practices for the future. Part of this includes ensuring that all our systems run smoothly at all times. On any given day, we rarely have time to keep an eye on all our systems. We therefore decided to monitor our school’s IT environment with a centralized network monitoring tool.”

Stefan Roschewitz, IT administrator
BBS Holzminden

Your POP3 monitor at a glance – even on the go

PRTG is set up in a matter of minutes and can be used on a wide variety of mobile devices.

device overview
Gartner peer insights

“Great interface, intuitive, full REST support. custom scripts, rest sensors add extra value. We have been using PRTG for 10 years now in multiple environments and use cases. it has by far the best interface and very easy to setup without prior experience.”

Read the complete review at Gartner Peer Insights

Create innovative solutions with Paessler’s IT partners

Partnering with innovative IT vendors, Paessler unleashes synergies to create
new and additional benefits for joined customers.

baramundi

baramundi

baramundi and PRTG create a secure, reliable and powerful IT infrastructure where you have everything under control - from the traffic in your firewall to the configuration of your clients.

Read more
INSYS icom

INSYS icom

With the combination of PRTG and Insys, the monitoring specialist Paessler and the industrial gateway manufacturer INSYS icom offer a practical possibility to merge IT and OT.

Read more
Siemon

Siemon

Siemon and Paessler bring together intelligent building technology and advanced monitoring and make your vision of intelligent buildings and data centers become reality.

Read more

Find the root cause of the problem with our PRTG POP3 monitoring solution

Real-time notifications mean faster troubleshooting so that you can act before more serious issues occur.

Free download
PRODUCT OVERVIEW
Paessler PRTG

Paessler PRTG

Network Monitoring Software – Version 25.2.106.1114 (May 05th, 2025)

Hosting icon

Hosting

Download for Windows and cloud-based version PRTG Hosted Monitor available

Languages icon

Languages

English, German, Spanish, French, Portuguese, Dutch, Russian, Japanese, and Simplified Chinese

test

Monitor everything

Network devices, bandwidth, servers, applications, virtual environments, remote systems, IoT, and more

test

Pricing

Choose the PRTG Network Monitor subscription that's best for you

Discover more monitoring insights and stories

Resources Solution

Solutions for all your monitoring needs

  • Email monitoring
  • Wi-Fi monitoring
  • The monitoring solution for all areas of IT!
Resources Content

Powerful stories from the monitoring world

  • New Features in PRTG 7.1 (Part 4): "Email Round Trip Monitoring"
  • Examples of IT Scenarios You Can Monitor with PRTG 100 for Free
  • PRTG's Email Round Trip Sensor and Google Mail
Resources Solutions

Resources to master your monitoring challenges

  • POP3 Sensor
  • SMTP&POP3 Round Trip Sensor
  • POP3 Round trip sensor

POP3 Monitoring: FAQ

 

What is POP3?

POP3 (Post Office Protocol version 3) is a standard email protocol used for retrieving emails from a remote mail server to a local client. It enables users to download messages from their email server to their local device (such as a computer or smartphone), where they can be read offline. POP3 is one of the oldest protocols for handling email. POP3 connections usually use port numbers 110 or 995 for communication.

Can PRTG monitor encrypted POP3 connections?

Yes, PRTG fully supports monitoring of SSL/TLS encrypted POP3 connections. It not only tracks the encryption status but also monitors SSL certificate validity to ensure secure email retrieval processes. It also alerts you to repeated login attempts or potential security breaches.

Does PRTG support monitoring for other email protocols alongside POP3?

Absolutely. PRTG offers integrated monitoring for POP3, IMAP, and SMTP protocols, allowing you to oversee your entire email infrastructure from a single platform. This comprehensive approach is particularly valuable for organizations using multiple email protocols.

For instance, you can simultaneously monitor POP3 for email retrieval, IMAP for synchronized access across devices, and SMTP for outgoing mail. PRTG's unified dashboard provides a holistic view of your email system's health, making it easier to identify issues that might affect multiple protocols and streamline your email service management.

What is the difference between POP3 and IMAP?

The Post Office Protocol Version 3 (POP3) and the Internet Message Access Protocol (IMAP) are both protocols used to retrieve messages from an email client. The difference between these protocols is that POP3 downloads messages from the mail server to the recipient's computer. As a result, the email is only available locally in the POP3 mailbox. IMAP, on the other hand, downloads a copy of the email to the recipient’s computer and leaves the original message on the server.

How does PRTG monitor email round trips?

PRTG uses preconfigured sensors to monitor the sending and receiving of emails that originate in your system. It starts by sending an email to a given email address. This allows you to immediately see whether – and how fast – the email reaches the recipient, and how long it takes for the recipient to retrieve the email via POP3. If the delivery and retrieval are successful, the email is automatically deleted.

How does PRTG track emails?

PRTG tracks emails by leveraging regular expression matching within log files for advanced analysis. This feature allows PRTG to identify specific patterns, anomalies, or issues in email logs, such as delivery failures, unusual access patterns, or errors. By analyzing these logs, PRTG can help you spot potential security threats or performance issues in your email system early on, enabling you to address them before they escalate into serious problems.

What is a sensor in PRTG?

In PRTG, “sensors” are the basic monitoring elements. One sensor usually monitors one measured value in your network, for example the traffic of a switch port, the CPU load of a server, or the free space on a disk drive. On average, you need about 5-10 sensors per device or one sensor per switch port.

We asked: would you recommend PRTG? Over 95% of our customers say yes!

Paessler conducted trials in over 600 IT departments worldwide to tune its network monitoring software closer to the needs of sysadmins. The result of the survey: over 95% of the participants would recommend PRTG – or already have.

recommendation

Still not convinced?

Love

More than 500,000 sysadmins love PRTG

Paessler PRTG is used by companies of all sizes. Sysadmins love PRTG because it makes their job a whole lot easier.

PRTG

Monitor your entire IT infrastructure

Bandwidth, servers, virtual environments, websites, VoIP services – PRTG keeps an eye on your entire network.

test

Try Paessler PRTG for free

Everyone has different monitoring needs. That’s why we let you try PRTG for free.

PRTG Logo

Start monitoring your POP3 servers with PRTG and see how it can make your network more reliable and your job easier.

Free download
PRODUCT OVERVIEW

Products

  • Paessler PRTG
    Paessler PRTGMonitor your whole IT infrastructure
    • PRTG Network Monitor
    • PRTG Enterprise Monitor
    • PRTG Hosted Monitor
  • PRTG extensions
    Extensions for Paessler PRTGExtend your monitoring to a new level
  • Icon Features
    FeaturesExplore all monitoring features

Monitoring with PRTG

  • Network monitoring
  • Bandwidth monitoring
  • SNMP monitoring
  • Network mapping
  • Wi-Fi monitoring
  • Server monitoring
  • Network traffic analyzer
  • NetFlow monitoring
  • Syslog server

Useful Links

  • PRTG Manual
  • Knowledge Base
  • Customer Success Stories
  • About Paessler
  • Subscribe to newsletter
  • PRTG Support
  • PRTG Consulting

Contact

Paessler GmbH
Thurn-und-Taxis-Str. 14, 
90411 Nuremberg 
Germany

info@paessler.com

+49 911 93775-0

  • Contact us
©2025 Paessler GmbHTerms & ConditionsPrivacy PolicyImprintReport VulnerabilityDownload & InstallSitemap
Network Fault Management Network Fault Management Network Fault Management