Compare Mailspring and Thunderbird 
- Users report that Thunderbird excels in its Unified Inbox feature, scoring 8.9, which allows for seamless management of multiple email accounts in one place, while Mailspring, with a score of 9.2, also offers a strong unified inbox but lacks some of the advanced filtering options that Thunderbird provides.
- Reviewers mention that Thunderbird's Filters feature is highly customizable, scoring 8.9, enabling users to create specific rules for sorting emails, whereas Mailspring's filters, scoring 7.3, are seen as less flexible and may not meet the needs of users with complex email management requirements.
- G2 users highlight that Mailspring shines in Task Management, with a score of 9.7, offering robust tools for tracking tasks directly from emails, while Thunderbird, scoring 8.3, provides basic task management features that may not be sufficient for users looking for comprehensive task integration.
- Users on G2 report that Thunderbird's Quality of Support is rated at 7.9, which is higher than Mailspring's 7.1, indicating that users feel more supported when using Thunderbird, especially when encountering technical issues.
- Reviewers mention that Mailspring's Mobile Application is rated at 7.4, which is a significant drawback compared to Thunderbird's desktop application score of 9.1, suggesting that Thunderbird may be a better choice for users who prioritize a strong desktop experience.
- Users say that both products offer good Calendar integration, with Thunderbird scoring 8.4 and Mailspring at 8.6, but Mailspring's integration is often praised for its user-friendly interface, making it easier for users to manage their schedules directly from their email client.
Mailspring is beautiful, user-friendly, and works how you expect it to work. It's also fast and has all sorts of features that are very useful, like the ability to cancel sending e-mails a few seconds after you send them.
Although it starts off well, it quickly runs into syncing problems. It almost looks as if it was only tested on gmail accounts. Using any other imap server only works for a short time, then all of a sudden starts showing only the last 4 or 5 emails or...
It has proven to be a very good tool for email marketing, it is easy to add or configure multiple accounts, it is easy to operate and the user interface is also good, and the best part is that it is free. Thunderbird mail is a good tool for sending HTML...
It's kind of older. Probably competes well with an Outlook 2000, or Lotus Notes style interface. It's had some upgrades, but unless you are a Netscape or Firefox lover from yesteryear, it's just not common enough to be a modern email program.
Mailspring is beautiful, user-friendly, and works how you expect it to work. It's also fast and has all sorts of features that are very useful, like the ability to cancel sending e-mails a few seconds after you send them.
It has proven to be a very good tool for email marketing, it is easy to add or configure multiple accounts, it is easy to operate and the user interface is also good, and the best part is that it is free. Thunderbird mail is a good tool for sending HTML...
Although it starts off well, it quickly runs into syncing problems. It almost looks as if it was only tested on gmail accounts. Using any other imap server only works for a short time, then all of a sudden starts showing only the last 4 or 5 emails or...
It's kind of older. Probably competes well with an Outlook 2000, or Lotus Notes style interface. It's had some upgrades, but unless you are a Netscape or Firefox lover from yesteryear, it's just not common enough to be a modern email program.
