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Mailtrack VS CloudLinux

Compare Mailtrack VS CloudLinux and see what are their differences

Mailtrack

Know when your emails are opened. The original email tracker for Gmail, since 2013.

Rating
0 reviews
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Alternatives Is it good?
CloudLinux

Making Linux secure, stable, and profitable for thousands of hosting providers and data centers worldwide.

Rating
0 reviews
Pricing
Open source
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Alternatives Is it good?
InboxAgent
InboxAgent uses AI to read your shared mailboxes, like info@ and sales@, plus everyone's own inbox, on Microsoft 365, Gmail, Zoho Mail or IMAP. It finds the sales leads and gives each an owner on a board. Never sends from your mailbox. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, Mailtrack seems to be more popular. It has been mentioned 10 times since March 2021.

social mentions
10 vs 0
Email Productivity popularity
100% vs 0%

Base details

Website, pricing, platforms and company facts side by side.

Mailtrack
CloudLinux
Website mailtrack.com cloudlinux.com
Pricing —
Open source
Company Startup from Spain · 20 - 49 employees · 2013 —
Listed in
Email Productivity Email Tracking Transactional Email Sales Email +2
Hosting Web Hosting Cloud Hosting VPS Hosting +1

About Mailtrack and CloudLinux

In their own words, as submitted to SaaSHub.

Mailtrack
CloudLinux

Mailtrack is the original email tracker for Gmail, made by Mailsuite. Since 2013, 14 million people have signed up, and more than 3 million have the extension installed today. It adds double checkmarks to Gmail so you can see which emails have been opened: one check when sent, two when opened....

Read more about Mailtrack

No description of CloudLinux yet.

Features and specs

What each product offers, as listed by its team.

Mailtrack 8 features
CloudLinux 5 features
  • Read Receipts
    Double checkmarks appear next to every sent email in Gmail: one when the message is delivered, two when it is opened.
  • Link Click Tracking
    Clicks on links inside a sent email are tracked alongside opens, showing which content the recipient engaged with.
  • Real-Time Notifications
    A desktop notification confirms the moment an email is opened or a link is clicked, without leaving the inbox.
  • Tracking History
    Every open is listed with its date and time, so follow-ups can be timed around real engagement.
  • No-reply alerts
    Reminders flag messages that have not been opened or answered within a chosen period.
  • Group email tracking
    For emails sent to several recipients, Mailtrack identifies which individual recipients opened the message.
  • Daily Reports
    A daily summary lists the emails opened that day and the ones still unread.
  • Scheduled tracked emails
    Emails can be scheduled to send later and are tracked the same way as any other message.
  • Enhanced Server Stability
    CloudLinux uses its lightweight virtualization technology (LVE) to isolate each tenant on a shared hosting server, preventing any single user from consuming excessive resources and crashing the server for everyone else. This ensures consistent uptime and performance.
  • Improved Security with HardenedPHP and KernelCare
    CloudLinux offers HardenedPHP, which patches old and unsupported PHP versions against known vulnerabilities, and KernelCare, which provides live kernel patching without requiring server reboots. These features significantly enhance server security posture.
  • Resource Limit Management
    Administrators can set granular resource limits (CPU, memory, I/O, number of processes, etc.) per user account using LVE Manager. This makes it easy to manage shared hosting environments and ensure fair resource distribution among tenants.
  • CageFS File System Virtualization
    CageFS creates a virtualized file system for each user, preventing them from seeing other users on the server, viewing sensitive configuration files, or exploiting server vulnerabilities. This adds an important layer of isolation and security.
  • Wide Compatibility with Hosting Panels
    CloudLinux integrates seamlessly with popular hosting control panels such as cPanel, Plesk, and DirectAdmin, making it straightforward for hosting providers to adopt without overhauling their existing infrastructure or workflows.

Possible disadvantages

  • Additional Licensing Cost
    CloudLinux requires a paid monthly or annual license on top of the base server cost. For smaller hosting providers or individual server owners, this additional expense can add up and may not always be justifiable compared to free alternatives.
  • Limited to CentOS/RHEL-Based Systems
    CloudLinux is built on top of RHEL/CentOS and does not support other Linux distributions like Ubuntu or Debian. This limits its adoption for hosting providers who prefer or already run non-RHEL-based environments.
  • Learning Curve for Configuration
    While CloudLinux provides powerful resource management tools, properly configuring LVE limits, CageFS, PHP Selector, and other features requires a solid understanding of the platform. Misconfiguration can lead to users being unnecessarily restricted or resources being poorly allocated.
  • Potential Performance Overhead
    The additional layers of virtualization, resource monitoring, and file system isolation introduced by CloudLinux can impose a slight performance overhead on the server compared to running a bare, unmodified Linux distribution without these controls.
  • Dependency on CloudLinux Ecosystem
    Adopting CloudLinux means relying on their ecosystem for kernel updates, PHP patches, and security fixes. If the company experiences delays in releasing patches or changes its pricing/licensing model, hosting providers may find themselves locked into a dependency that is difficult to migrate away from.

Analysis

An editorial look at what each product does well and who it suits.

Mailtrack
CloudLinux

No analysis of Mailtrack yet.

Overall verdict

  • CloudLinux is a well-regarded, mature Linux OS distribution and toolset specifically designed for shared hosting and multi-tenant server environments, offering strong isolation, resource management, and security features that make it a solid choice for hosting providers.

Why this product is good

  • Provides LVE (Lightweight Virtual Environment) technology for per-tenant resource isolation, preventing 'bad neighbor' effects on shared servers
  • Enhances server stability and security by isolating users so that one account's issues (crashes, resource spikes) don't affect others
  • Offers extended lifecycle support (longer than standard CentOS/RHEL support windows), which is valuable for legacy systems
  • Includes tools like CloudLinux OS Shield, Imunify360 integration, and hardened kernel options for improved security
  • Compatible with popular control panels like cPanel and Plesk, making it easy to integrate into existing hosting stacks
  • Backed by an established company with a long track record in the hosting industry and responsive support
  • Offers granular control over CPU, memory, I/O, and other resources per user account
  • Provides PHP Selector and multiple PHP version support, useful for hosting providers serving diverse client needs

Recommended for

  • Web hosting companies running shared or reseller hosting environments
  • Hosting providers needing to isolate customer accounts on the same physical server
  • Businesses requiring extended OS support lifecycles beyond standard RHEL/CentOS EOL dates
  • Enterprises using cPanel or Plesk that want tighter security and resource control
  • Hosting companies looking to reduce support tickets caused by noisy-neighbor resource contention
  • IT teams managing multi-tenant infrastructure who need governance and monitoring tools built into the OS layer

Videos

Walkthroughs and reviews on video.

Mailtrack 2 videos + Add
CloudLinux 3 videos + Add

Mailtrack

More videos

  • - Getting Started with Mailtrack

When To Use Cloudlinux On Your Virtual Private Server (VPS)

More videos

  • - CloudLinux OS+ in a minute: Explore Features
  • - How CloudLinux Plans to Keep CentOS 6 Alive

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Mailtrack
CloudLinux
100% 100%
Email Productivity
0% 0%
0% 0%
Hosting
100% 100%
100% 100%
Email
0% 0%
0% 0%
Cloud Hosting
100% 100%

Questions & Answers

As answered by people managing Mailtrack and CloudLinux.

What makes your product unique?

Mailtrack's answer

Mailtrack puts email tracking inside Gmail rather than in a separate tool:

  • One checkmark when a message is sent with tracking
  • Two checkmarks when it's opened

It all happens in the inbox itself, so there's no dashboard to open and nothing to learn. It has worked this way since 2013, and unlimited tracking has always been part of the free plan.

Why should a person choose your product over its competitors?

Mailtrack's answer

Because it has a track record few tools in this space can match.

  • Since 2013. Mailtrack has been tracking Gmail email for more than a decade, through every change Google has made to Gmail along the way.
  • Trusted by millions. More than 14 million people have signed up, and over 3 million have the extension installed today.

When you're relying on a tool to tell you whether an email was read, how long it has been doing that reliably matters.

What's the story behind your product?

Mailtrack's answer

Mailtrack launched in 2013 in Barcelona, built around a single question people kept asking about their own email: did they read it?

More than 14 million people have signed up since, and over 3 million have the extension installed today.

The company behind it is Mailsuite, which also builds mail merge, templates, documents and eSignature for Gmail. Mailtrack remains the tracking product and the name most users know.

User comments

Share your experience with using Mailtrack and CloudLinux. For example, how are they different and which one is better?

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

Mailtrack no reviews yet
CloudLinux no reviews yet
  • The 24 Best Email Marketing Tools
    webbiquity.com · Aug 2022

    Hi Emmery – ah, that makes sense! I was thrown off by your reference to Mailtrack. I don’t think there are limits on the A/B Split and Multivariate Test Duration calculator itself, but would recommend double-checking...

We have no reviews of CloudLinux yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Mailtrack 10 mentions
CloudLinux 0 mentions
  • Experienced remote worker going full freelancer. Any advice for cold outreach?
    If you ar eusing GMAIL, install this https://mailtrack.io/en/ it will send you notifications if your prospect is reading your emails. Hence it will be a basis on how will you make your followups. Also it is sending you notifications on... Source: over 3 years ago
  • I receive 2-3 emails like this one everyday, is it a phishing attempt? Look at the year at the bottom
    Somebody didn't inform these guys or their millions of users that their email tracking program for Gmail isn't actually working then. Source: about 4 years ago
  • What tools allow you to track scheduled emails?
    We use https://mailtrack.io/en/ it works beautifully. Source: about 4 years ago

View more

Tracking CloudLinux since Mar 2021.

Alternatives to Mailtrack and CloudLinux

When comparing Mailtrack and CloudLinux, you can also consider the following products.

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