Email lies at the heart of our business -- customer support and customer contact is critical to our survival. This is not something that can be relegated to a Web UI or just any old client interface. Thunderbird provides small organizations (like ours) a free Email client that is full-featured, fast, and efficient. I can't imagine trying to use anything else!

The Thunderbird Email client provides a fast and easy way to corral multiple Email addresses. With support for POP3 mailboxes, you can pull your data off the Email server and retain/manage it all locally, which is great when you have to travel and may not always have access to the Email server, or for when you want the extra security of getting the data off of the Internet quickly. With IMAP support, you can enable access to a shared Email queue, allowing multiple employees to see and respond to the inbound messages -- ideal for a customer-facing "Sales" or "Support" queue -- and every user can see and search on every reply. All local messages and attachments are stored in a local profile folder, which can be easily moved to a NAS, allowing you to access the Email profile from any machine on the network. You can also synchronize your profile to your laptop so that all of your Email can travel with you into the field, even while disconnected. Add in the intuitive user interface, multiple-calendar features, a solid address book function, and you have an Email client that is hard to beat. Since it's free to use, this makes it even better!

Like with any software solution that you've used for 10+ years, the product does evolve, and they change the UI from time to time. These "improvements" may be beneficial to most users, but moving things around in the UI can slow you down, and the changes can sometimes break automation scripts that rely on specific sequences of keystrokes. Luckily, these occur only about every 2 years or so. Another issue I have is with the built-in calendar. Sometimes it captures an Event from an EMail with an ICS attachment -- and sometimes it doesn't. Apparently, Microsoft Teams doesn't send properly-formatted messages, so this is most often broken, but you can always work around it through manual data entry.

Thunderbird handles multiple email accounts. There is even a chat feature. It sorts my email. It removes the Spam and Junk correctly. It archives and stores my past emails and keeps them where they can be searched and accessed at any time. A life saver finding old emails once again!

Thunderbird is so easy to setup. Also if there is an option you want included such as a calendar or todo list or whatever, it integrates easily with add-ons and tools. There is nothing missing when it comes to this power tool!

The software has never let me down. There is nothing to say about "like least". It works. It is easy to learn. And use it every day. And have for YEARS.

Overall, Thunderbird is a feature-packed email management solution that provides advanced email features and customization options for individuals and small businesses. It is a free and open-source application that supports multiple email accounts, integrates well with other applications, and provides robust security features. However, some users may find the user interface to be complex and the performance to be slow on older computers.

Customizable: Thunderbird Mail is highly customizable, allowing users to personalize their email experience by choosing from a wide range of themes, plugins, and extensions.Advanced Features: Thunderbird Mail offers advanced features, such as message categorization, quick search, and email filtering, which make it easier for users to manage their email and prioritize important messages.Support for Multiple Accounts: Thunderbird Mail supports multiple email accounts, allowing users to manage all their email in one place, reducing the need to switch between multiple email services.Integration with Other Applications: Thunderbird Mail integrates well with other applications, such as calendars, to-do lists, and news readers, allowing users to streamline their workflow and manage their tasks more efficiently.Free and Open Source: Thunderbird Mail is a free and open-source application, which makes it a cost-effective solution for individuals and small businesses.Cross-Platform Support: Thunderbird Mail is available for Windows, Mac, and Linux, so users can choose the platform that best suits their needs.

Complex User Interface: Some users may find Thunderbird's user interface to be complex and difficult to navigate, especially if they are not familiar with advanced email features.Slow Performance: Thunderbird may run slow on older computers, especially when managing a large number of emails and attachments.Limited Mobile Support: Thunderbird does not have a dedicated mobile app, which may make it difficult for users to access their email from their mobile devices.Lack of Cloud Integration: Thunderbird does not offer cloud integration, which may limit its usefulness for users who need to access their email from multiple devices.Limited Customer Support: Thunderbird is an open-source project, which means that customer support is limited and users may have to rely on online forums and community resources to get help.Compatibility Issues: Thunderbird may not be compatible with all email providers, which could limit its usefulness for some users.

Haven't found a better alternative to manage dozens of emails in one spot. Differentiates each of them in a much better way than others.

No native integration with google calendar, have to use a plugin, but still wish the calendar had a better overview.

Thanks for this innovative mailbox helping me benefit my time for more time at home. Please do keep working for this best service.

I use this simple art of sending emails attaching previous workspace references filtering how to respond to their immediate concerns. Thunderbird can classify these contact reports with much ease. This has helped many friends to get actual information with a simple inbox management.

I love adding more rules if less time can explore the most needed response. This plans how I can manage my business anywhere with this free software. This innovation always saves more cost if patches are introduced regularly for advanced users.

I would be lost with Thunderbird. Just to have all email accounts in one tool, without the weird look of web based clients is so much better for me.

Basically to be able to combine all email accounts in one tool, set up fast filters to manage and archive everything, drag & drop mails between accounts.

Nothing really. It has all the features I need and comes with good add-ons.

10/10 overall: Been using it for 15 years!!

(1) secure (2) Quick loading (3) Scalable to multiple accounts for the same user (4) Alias feature (4) Multiple add-ons for advanced features

They need to launch the mobile version too!

I am generally satisfied with Thunderbird and have been using it now for 4-5 years. It provides an affordable solution that is relatively easy to use. It doesn't always integrate well with Microsoft SSO email, but that is mostly due to the inflexibility of the IT decision-makers on the other end.

Having a free email client is essential for our small startup.

Event notifications popup and often do not close when I click dismiss or prompt me to update the event. This mostly occurs if I am responding to the prompt after the event as opposed to before.

I've been a Thunderbird user from so many years, I trid some other software for the purpose of experiment and comparison, but I've always switched back to it.

Thunderbird is full of features, customizable with addons and themeable. It has all the features you'd expect from a mail client, much better than some other commercial softwares: advanced search and filters, archiving, automatic message filtering, OpenPGP keys management, grouping by conversation, calendar with alerts, and many others.

At the moment of writing, you can not order your accounts in the sidebar unless you install one of the dedicated addons.

For many years I used Thunderbird as my primary email server for business purposes. It is a very complete tool and free to use but I currently use other more up-to-date tools.

It allows you to customize many aspects of the inbox, as well as the templates and privacy and security options.

Its use is less widespread than that of other email servers.

One of the most well rounded email clients and beats Outlook by a mile and then some!

Open source, Mozilla-made, feature rich. What's not to like! I used Mozila Thunderbird for a good 7 years before moving to Protonmail. Too many features to love to list. Ability to integrate with Protonmail is a plus as well.

The fact that this is a local client. Iwas needing cloud access to mails and my webmail was not cutting it. Also, setting up encryption was a bit tedious. Hence, had to move to Protonmail.

I was delighted to start using this app when a coworker recommended it to me because I'd been trying to find something that was not so spartan like a lot of Windows programs and apps are.This is a little different but with that Windows goodie, which is FEATURES! This client comes loaded with features, you'll need to spend an hour or so finding out all the good things Thunderbird brings to the table.You will definitely find something you need or those 'very nice to have' additions also. Coming from a Mac I was blown away at the richness of things you can actually have in an Email client. Thunderbird has given me A LOT to look forward to and I have adopted it in my business as well. Honestly, this is not a biased opinion, this is a real opinion. It's the best free email client out there, hands down! I truly recommend it!

If I could define in two words all the pros of this software, it's FEATURE RICH!- a lot of features tech savvy folks will bathe in;- efficient client;- nice interface;- calendar built in (very well thought out);- tabs for better viewing;- mail and calendar pane in one single view;- great extensions for the app

The only con I found with this fantastic app is that although you can change its interface via extensions, a more refined user interface could do this app some good!But it's not bad at all.RAM memory is another con that I'd point out. In my usage, it's pretty heavy and my PC took a little hit there.

Thunderbird is totally free as it's developed by Mozilla, so you won't pay any subscription fees. You can manage multiple email inboxes from one interface and open each email in a separate tab within the software interface.

I think they should develop the right to left (RTL) editing function to be fully compatible with RTL Languages, when I write a message in Arabic I notice that dots at the end of phrases are reversed and moved to the beginning, the Arabic phrases are also messed up when writing English word within them.

Of course, I like that it is open-source and free of costs. And I like Thunderbird Filelink. The solution for sending larger files per cloud link instead of sending attachments.

No support per email or phone. Only a knowledge base and a forum.

I used thunderbird for a long time, a long ago. I was not pleased ; of course, you could read and send emails; does that job..

I believe Thunderbird lacks a bit when compared to other softwares for the same purpose ; But yet again, of course it does the basics , but it has room for so much improvement.One thing i particullarly hated was the fact that the program was crashing on me from time to time.

It handles my mail without any real issues and has been doing so for many years so ...it even handles Very big mailboxes easily. Some extensions needed for some basic things even but all work pretty much perfectly.

Recently upgrades have broken plugins more often which is annoying.

In a word, everything! I use this software exclusively to check email from multiple accounts in addition to a calendar extension for all my appointments. I could probably live without it, but I have no plans of giving it up!

Absolutely nothing to complain about. Get it, use it, love it!

Overall it is positive. We have been very happy with the setup. we use IMAP

Ease of use, simple set-up. We use this across all our platforms.

I am very happy with this software however on occasion when it updates I need to set it up again.

I use it everyday among other email clients and it is a good free sourced email platform.

For the most part it is an easy setup of your email. It is a free source email so you can't beat the price.

Setting up Microsoft exchange inside of Thunderbird is difficult if you do not know what you're doing there really is no work through out there that is easy to follow.

Overall Thunderbird was an okay software if you're just starting out but as your company grows I suggest investing in something better.

I like the fact that Thunderbird was free and worked for the most part.

I dislike the fact that Thunderbird was more of a home use and not a business quality email client.

Very simple and powerfull mail client with support to all protocols.

Attachment managment a little bit complicated.

Thunderbird is really easy to use and install. It supports all the mail types and can be configured easily. Furthermore, it supports more than one email which can be quite interesting to manage multiple email inboxes at one place!

Sometimes, the notifications are delayed or requires manual refresh to get new mails.

The fact that it is free and just works. Lots of plugins to add functionality.

Uses a lot of RAM. Isn't web based (but it doesn't need to be). Wish I could back up my profile and keep that in the cloud.

Well excellent experience, no complaints, I hope in future can see more improvement

Generously speaking it is one of the best software I am using, I have 3 Gmail accounts and I have emails in all the 3 accounts somewhere 50000, it is all saved and I can see all the record easily I recommend this software to everyone

No, I did not find out any difficulty, easy to use, do not think so there is need of any kind of improvement it is completely awesome software

I like Thunderbird. It's pretty quick. I have my emails in order. It has very transparent view. Everything is there where i need it.

I don't know. I didn't come up with anything that bothered me.