
Alex Schendel
Recently switched from Gmail and I'm liking it so far! Sure, it doesn't have Google's special mail integration that seems to not require infrequent polling, but it works perfectly well for me. I like the option to have a unified inbox so I rarely ever have to switch accounts. I also really appreciate that Mozilla is always very communicative regarding feedback.
2 people found this review helpful

d p
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i thought i liked this email client at first, but not so much now. I've been intermittently getting error messages saying that the message failed to send when I'm trying to email attachments. they sit in the outbox, and then i open it, and it says message deleted, or sometimes it just removes the attachment after sending. since this is for work, i can't afford the time to troubleshoot why this keeps happening, so I'm moving on.
10 people found this review helpful
Mozilla Thunderbird
30 July 2025
Thanks for your feedback, and we're sorry for the frustrations with messages being stuck in the outbox (a possible solution is in 11.0) and with attachments disappearing. While we'd love to help troubleshoot at Settings > Get Help, we hope you try us again as we improve!

K Hindall
I love the Mac version, but I just found out I've been "sending" for six weeks with this app, the messages go in the Sent folder, and nothing is getting outside my domain! I can't access a log to see what is wrong. It's not my ISP; my sister's mail (iOS, but same domain) is working fine. I also find the help system confusing to use. I hate to go corporate, but I must be able to send mail. Just receiving isn't good enough.
1 person found this review helpful
Mozilla Thunderbird
21 August 2025
We're so sorry this is happening, and we'd like to understand what's happening! We do have a fix in 11.1 to deal with one cause of this problem. For more detailed troubleshooting, please go to Settings > Get help to register for an account and open a support question!