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Hi all,

I have tried on K9, and Thunderbird Mobile.

On my tablet, with K9 mail, I exported my fully working accounts, and imported to my phone. All worked, except one account, where it only has an outbox. No inbox, no sent folder, nothing.

I then Installed Thunderbird mobile, and used the QR code link in the desktop app, to sync to it. Same issue. All other accounts work fine, but not that one account. Only an outbox.

I've logged into the web version of that account, and no restrictions are on folders. And it's only on my phone. On tablet it's fine.

I can't even choose folders in settings, for sent, etc, as there are none to choose.

Any help would be greatly appreciated. Thank you

Hi. For a long time, I've noticed that emails I send from home are sent, but those I try to send with the same settings do not get sent when connected to the Internet in 4 out of 4 cafes. My ISP, Zen, hasn't been able to explain why. I've tested whether Google VPN blocks it somehow, and it doesn't. I normally use Thunderbird. Today, I found that, in the same cafe, messages I tried to send using Thunderbird failed to send, whereas there was no problem with GMail, Proton Mail or Outlook. Any suggestions?

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 cannot close the Thunderbird email app on Samsung Galaxy S25 Ultra Android 16 One UI 8.0. The back arrow in the navigation bar no long closes the app windows. Have to use the back to home center button. Is there a solution to this problem?

Hi, I use TB for quite a while on my pc. Tried to use TB 4 A. I used the import function. Got 3 accts. Scanned the QR code and it seemed to import all of them. But then I noticed the Gmail POP acct was not showing any entries. I got confused, so I uninstalled and then Only imported the Gmail account. Nothing was there in any folder.

Is there a problem with POP? The documentation says no.

Thanks, Sam

I donated and installed thunderbird on my laptop last week. I have donated twice more in the last few days to install thunderbird on my android phone in the last few days unsuccessfully. I do not know what I am doing wrong. Can you help me?

I have a POP3 account setup on my laptop and recently downloaded the thunderbird mobile app for android on my phone. I setup the android mobile app as IMAP to access the same server account as my POP3 laptop. When I look at my thunderbird phone email notifications in the morning, I compare them to the emails in my inbox on my laptop and find that the emails I see on my phone DO NOT show up in my inbox on my laptop ? I thought IMAP was NOT supposed to delete messages on the server when retrieved to my phone. My intent was to just read emails remotely on my phone but leave them on the server. I want my POP3 laptop account to see all of my emails and control whether to delete them or not after reading.

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?

Hello! It seems like Thunderbird must have updated on my phone and somehow my Sent folder is now not only empty but no longer syncs with email account. It worked perfectly fine until just the other day and now I can't tell what needs to be changed in my settings since I don't know what caused the problem! :( I've tried resyncing, cache clearing and force stopping but I can't think of what else I should do. Any help is greatly appreciated! Thank you.

What I delete an email message on my phone, it disappears in my app. But when I check on my computer and in my old email app, the deleted message is still there.

I've checked in multiple email accounts and multiple messages.

Thanks Jim King

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.

As email threads become lengthy they become unreadable. The older emails turn into displaying one character per line. Is this a bug or something fixable on my end?

Произвела экспорт всех данных с почты с компьютера на телефон. Прогрузились входящие сообщения, исходящие отсутствуют. Не отображаются также и новые отправленные сообщения. Сообщения отправляются, но в списке исходящих их нет.

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 installed Thunderbird for Android today on my Moto g stylus. I used the QR code to import the settings from Thunderbird on my Windows 10 laptop. In general, things seem to be working, but outgoing messages are not being copied to the "sent" folder. I can see older "sent" messages that were sent from my Windows 10 Thunderbird, but no sent messages that originated from my phone. I have an IMAP mail server.