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I just installed Thunderbird for Android on my Pixel phone for the first time. I have used Thunderbird on my desktop PC for many years, so I am very familiar with Thunderbird in general. I used the "Export for Mobile" feature on my desktop installation, to import my account settings into the Android installation.

For the most part, Thunderbird for Android works great, as I would have expected. However I am seeing a problem which appears (to me) to be a bug. When I compose and send an email on my phone, and then look in the "Sent" folder on the phone, the email that I just sent shows up there. But only on the phone. If I open Thunderbird on my desktop PC and look at the Sent folder there, the email that I sent from the phone is not there. Apparently, it only gets placed in the phone's Sent folder, but it does not get copied to the email server.

A few other details: -- I use Thunderbird on 2 different desktop systems, a PC and a Mac. When I send email from either of those, that email DOES show up in the Sent folder on the other system. Emails that are sent from either desktop system also show up in my phone's Sent folder. So I know that the Thunderbird desktop application does upload the message to the email server's Sent folder correctly. But Thunderbird for Android does not upload its sent emails.

-- I don't know if it matters, but my email server is Microsoft 365, hosted by GoDaddy.

-- As far as I can tell, the most obvious setting for this is the "Upload sent messages" checkbox, which can be found in the "Sending mail" section of "Account settings" in the Thunderbird Android settings. This checkbox IS IN FACT turned on. I could not find any other settings which could possibly affect the copying of sent messages up to the email server's folders.

Is this a bug? Any ideas what might be causing this? Thanks for any help.

I have the Android T-bird app on my Google Pixel 9.

I am having constant problems with it not syncing.

This morning, when I swiped down, the kept spinning but did not connect. When i tapped the sync icon at the bottom left of the screen, nothing!

Nothing changed after rebooting the phone, which BTW takes almost twice as long as the reboot on my previous Samsung phones.

I have now uninstalled and reinstalled, and imported my settings using the QR code on my desktop. It imported my accounts, but asked me to sign in or sign in later. There is no link for signing in immediately, and sign in later does not allow any sign in opportunity.

I now have no emails imported to the app.

Any help would be appreciated

I have downloaded Thunderbird Android and want to write an email but my address book doesn't seem to work when I start writing into the address ("to") field. How do I connect my address book to Thunderbird?

I initially used the K-9 email client and switched to Thunderbird sometime last year. For almost a year now, I haven't received any notifications from Thunderbird when new emails arrive, which I believe worked initially.

Then new emails weren't displayed at all; I had to manually refresh my inboxes and folders. A recent update seems to have fixed at least this issue, as new emails are now available when I open my inboxes. However, I still don't receive any notifications.

I have also checked the notifications settings and the permissions, it is always mentioned that the "Alarms and reminders" permission is required, but I don't have this permission. Reinstall the app and reconfigure from the Windows Thunderbird didn't helped as well.

Specs: Phone is a OnePlus 8 Pro OxigenOS 13.1 Android 13

Any help is very welcome; I don't want to reset the device hoping it will work, only to find out that it didn't help.

Rarely fetches emails automatically at 15 minutes. I can fetch manually. This has been going on before the last update. I haven't changed any settings. Sometimes it fetches when I open the app. Other times I must fetch manually. Also, we should be able to fetch sooner than 15 minutes.

Just purchased and set up Thunderbird on new Samsung Galaxy S25 phone. Message inbox works but Sent, trash, and no other message box displays. How to correct and set up. Also how do you sync android Thunderbird phone app. w computer Thunderbird program. When I delete an inbox message on phone it is not deleted on computer Thunderbird program and vice versa . Computer is new build running Windows 11. Thanks for assistance. Techs at Verizon were unable to help.

Yahoo Mail settings. When I use Yahoo Mail with Thunderbird for Android, the folder structure is displayed in English. I want everything to be shown in German. Everything works correctly with Gmail; this is only a problem with Yahoo Mail. I've set everything to German in my Yahoo account, but it's still displayed in English in the app.

What can I do?

I'm just wondering if it's possible to get a fetch option that happens more frequently than fifteen minutes. On accounts I'm logged into on multiple devices I'll get the email on my iphone app and then I'm waiting for it to pop up in thunderbird on mobile.

Hello, I've got the french version of Thunderbird on my laptop. I want to have it now on my smartphone Android. But impossible to find the function "move to mobile" in the parameterss... Please help me !

I have a Windows 11 pro laptop with 66,000 emails in the inbox on Thunderbird. Most of those emails have been long since been deleted from the gmail server to stay within account limits.

I have a new Oneplus 13 phone running Android 16 which has the Thunderbird app (version 14). I setup the profile and it has loaded the emails currently on the gmail server. I would like to load all 66,000 emails currently saved on the laptop.

I copied the laptop Thunderbird email inbox file to a USB-C flash drive thinking I could copy that file onto the Android. Unfortunately, I learned that Android since version 11 or so limits access to its data files. My phone is not rooted so I don't have access and am unable to copy the inbox files into the androids Thunderbird storage file.

Is there a way to copy old emails from the desktop Thunderbird to Android?

I called Samsung, Tmobile, Geek Squad and Costco where I purchased my S23. I cannot receive emails had been ever since I had a cell phone and nearly 3 years ago when I purchased my S23. I cannot log into Microsoft because my account is block. I want to keep my current email address with Ionos.com. Please help me. Jay

Hello all,

Thank you for Thunderbird mobile!

I get a message not sent error when doing the following on Android smartphone: - click an email address link - create email opens - send completed email

Expected result: Email goes to outbox and is removed after sending

Actual result: - email stays in outbox and error cannot send is displayed - when moving email to Entwürfe and send again the sending succeeds, but email is present twice in sent folder

Please have a look!

Best regards Gerrit