eM Client vs Postbox

Microsoft 365

Gmail

Zoho Mail

Mailbird

Shift

Thunderbird

Compare eM Client and Postbox based on features, pricing, verified reviews, integrations & more on GetApp. Find out which software is best for your business in 2026.

Thunderbird is an on-premise email management platform designed to help businesses securely handle, search, organize, archive, and filter email conversations from within a unified platform. The Mail Account Setup Wizard allows professionals to set up existing user accounts with information, such as email address, name, and password.


Mailbird is a desktop email management application that helps businesses of all sizes synchronize messages from multiple accounts in a centralized inbox and connect the platform with LinkedIn. Mailbird's speed-reading functionality lets employees read at a fast pace to increase email productivity.

Zoho Mail, a business-oriented and privacy-guaranteed email service, is your single email solution. Zoho Mail also comes bundled with modern collaborative tools and a suite of apps to meet your business needs. Migrate now and get your unique email address with Zoho Mail.


eM Client is a powerful email client for Windows and macOS with a clean and easy-to-use interface. It also offers features for calendars, tasks, contacts, notes and chat.

eM Client covers all professional communication needs
for any team or enterprise and easily connects to any email service.

Address Book

Alerts/Notifications

Appointment Management

Archiving & Retention

Availability Management

Calendar Management

Calendar Sync

Calendar/Reminder System

Chat/Messaging

Collaboration Tools

Color Codes/Icons

Communication Management

Contact Database

Contact Management

Customizable Branding

Customizable Fields

Customizable Forms

Customizable Templates

Data Import/Export

Data Recovery

Deduplication

Drag & Drop

Email Distribution

Email Management

Email Monitoring

Email Reminders

Email Templates

Employee Management

Encryption

Event Calendar

Event Management

Event Scheduling

File Sharing

File Transfer

Filtering

Inbox Management

Interaction Tracking

Member Database

Productivity Tools

Real-Time Chat

Real-Time Updates

Reminders

Response Management

Scheduling

Search/Filter

Shared Inboxes

Signature Management

Task Editing

Task Management

Task Progress Tracking

Task Scheduling

Task Tagging

Team Calendars

Template Management

Templates

Third-Party Integrations

Whitelisting/Blacklisting

eM Client

Windows

Web Administrator

The greatest advantage is that you can purchase a lifetime license at a bargain and receive all future updates for free.

Marketing Mgr.

No other software that I use causes loss of data except emclient. Even after recovering to a prior backup ,software no longer queued new emails to respective accounts.

Director of Corporate Relations

I have found eM Client to be the perfect solution for my needs. I am able to access my saved messages and folders without having to pull them from the cloud.

Creative Director

I organised my folders and we so excited to have a creative email management program.

Partner

Whilst I have not yet lost any data, the checking is problematic if I am in a rush and for example only turned on the laptop to do a quick e-mail.

Tech support consistently blames the hosting company and vica versa rather work with the hosting company to fix problems.

I liked that eM was a kind of "middle of the road" (just the right amount) of functionality/features AND they have a nicer GUI than Thunderbird (more modern).

Either have discounts or don't, but that's a strange carrot to wave and then pull back. Then there is the issue of waiting weeks for confusing answers that need clarification.

Co-owner / Operator

It's simple and the free version is good for our purposes.

Chair of Trustees

One of our users has a strong aversion to webmail. EM Client is a good option for a traditional email client.

Founder

I liked the clean design and also the integration of calendar.

Graphic Designer

The simple and clean UI helps me focus on priority emails while staying organized and efficient.

Little problem or confusion I had with the "search" function. I think it did not work 100% well across all my accounts.

Has every features that you need to manage all mail, task, contact, notes, calendar and it's perfect with icewarp server because it's very well integrated.

Also I find the email interface to be much more user friendly than any of the cloud-based services.

But, I will say this: even though the issues wasn't resolved in my case, the customer support and moderators on their forum were all very helpful and responded pretty quickly.

Contributor

Still, I think the client is fantastic enough that I would want to purchase it, that is, until I got to their licensing policy.

Very much cheaper than Outlook but looks and feels familiar so is easy to use. We move to eM Client from Thunderbird and like the integration of eM Client with Google Contacts very helpful.

eM Client screenshot: eM Client - Contacts in People view

eM Client screenshot: eM Client - Calendar Week view

eM Client screenshot: eM Client - Mail

eM Client screenshot: eM Client - Tasks in Details view inspired by Getting Things Done method

eM Client screenshot: eM Client - Chat

eM Client screenshot: eM Client - Notes

eM Client screenshot: eM Client - various themes (custom themes and visual Theme Editor are available)

eM Client screenshot: eM Client - Contact cards overview

Freelancers

Large Enterprises

Mid Size Business

Non Profit

Public Administrations

Small Business

Gmail is a free, advertising-supported email service offered as part of Google Workspace (formerly G Suite), with 15GB of storage, color-coded inbox filters, and 'unsend' button

Microsoft 365, formerly Office 365, provides web, desktop, and mobile apps for Outlook, Word, Excel, PowerPoint, OneNote, Publisher, Skype, OneDrive, Exchange Online, and more

Shift is the first browser to merge all your web apps into one powerful window. Streamline everything you do online when you install Shift and access thousands of apps without leaving your browser.

Postbox is an email management application that aims to enhance productivity. The application offers an interface that is reminiscent of Apple Mail, providing a familiar experience to users. However, it distinguishes itself with additional capabilities and tools to handle demanding workloads.

Routing

Spam Blocker

Tagging

Postbox

Pastor

I am from the old school and when I had a registration problem I had trouble getting someone to respond.

Strategic Planner

What I enjoy most about Postbox is the ability for me to customize it to my needs. I also enjoy the new features that allow me to quickly form communications and sort my incoming emails.

Owner

Filters, rules, folders, quick commands - excellent choices to help speed along message handling. Also excellent capabilities with encryption and signatures.

Software Engineer

The interface is better and can be customized with themes. The software also is more reliable than Apple's offerings, and is solid, reliable software.

Owner/Manager

All and all, I've been super pleased with it's functionality as well as it's ease of use.

founder

Its features and integration with other productivity tools make it a great choice for users who want a robust email management solution.

Account Manager

As a user with multiple projects for multiple enterprises going at the same time, I found myself missing communications or misplacing threads because of the sheer volume.

Ease of use- Grouping of emails- Ease of archive- Amazing search features.

Product Manager

Notifications are still somewhat ugly, and there is no more specific configuration about that (disable notifications for an account or certain emails, for example).

Reliable, stable Software, fast, and gets continuously improved.

Account director

When I contacted the support, I was asked to paid 8$ to get assistance. I bought a lifetime licence and now I am stuck with a broken software.

Additionally, the software integrates with popular productivity tools, such as zapier, dropbox, etc, making it easy to manage emails in the context of other tasks and projects.

I like the theme option with the software and the ability to organize accounts groups as well as folders etc easily on the fly.

Producer

But for me, it is the simplicity of it all,  that it is quick and easy, I can change the default theme with 1 click, and it only took a few minutes to set up how I wanted it.

Senior Designer

It is easy to use and has so many themes and features. So user friendly and didn't cost an arm and a leg to purchase.

Web Developer

Postbox combines the core features I need for an email app with an excellent support team.

Operations 

I've seen a lot of changes in the app and I have always been incredibly impressed with the quality of product, focus on user security, and customer service.

Ph.D. Student

Overall, I really like this e-mail app. Although, it has some cons which I explained above, it is totally worth to money.

eM Client vs Postbox Comparison (2026)

eM Client

Postbox

Overview

Video & Screenshots

Pricing

User reviews

Key features

Integrations

Alternatives