Thunderbird for Android Community Forum

Hello, I’m having the following problem: When I try to add my Outlook email address to Thunderbird for Android, I get the error "Authentication unsuccessful: SmtpClientAuthentication is disabled for the Mailbox." This points to a help article that only describes a procedure using PowerShell—requiring domain admin privileges, which I don't have. Setting up the IMAP incoming server seems to work fine, but the outgoing server refuses to connect. This is just a personal account. The configuration is: Server: smtp.office365.com; Security: StartTLS; Port: 587; Authentication: OAuth 2.0; Username: mymail@outlook.de; Client certificate: None. I also tried the configuration using the server smtp-mail.outlook.com (with otherwise identical settings), but I get the same error. Does anyone have any advice?

I have an samsung s26 ultra, and I have all the configuration correctly, but when I receive a email app does sync automatically and it never show me notifications, I must open app an manually sync

I have imported from my Windows desktop program to Thunderbird Android App using the QR code, but existing messages are not appearing, only new ones.

Regards Jim

Before asking my question, I have to say that I have been extremely happy that Thunderbird introduced their app. for phones. Historically, I have had many problems with my desktop version, and even now there are days that I cannot send e-mails from my desktop, but that's a question for another time.

My question now is, am I somehow able to access my local folders that my son set up on my desktop (in order not to clog up my allowance), on my phone? The local folders are in the menu on my desktop, but not on my phone.

I activated message synchronisation for 15 min. intervall. The first few syncs were working correctly (around 3), then I'm just able to sync manually. In the thunderbird app settings, I already activated the battery setting to not restricted (I'm using my phone in german, not sure if the translation is 100%). Before that, I was not even getting the first syncs. How is it possible to sync reliable in the set intervall?

Thunderbird has stopped receiving emails. I followed the instructions I found. restet cache, I have enough memory, hosting service account space is adequate, checked login credentials (I have been sending and receiving for months with no problems) restarted phone. I am getting no error messages.

This happened with my last email program and I installed Thunderbird after no one could find a problem.

i have thunderbird on my pc and i now have it on my android phone the accounts have transfered over with all of the folders but the contents of the folders are missing, they are still there on the pc can anyone help?

Hver gang jeg får mails i min indbakke så kræves det at jeg sletter dem ikke bare en gang, men to gange, før de væk fra indbakken. Tidligere har jeg kunnet slette en mail en enkelt gang - som i alle andre mailprogrammer - men nu skal jeg som sagt dobbelt - slette dem. Hvad kan jeg gøre for at annullere indstillinger om dobbelt - sletning. Kh Flemming

I was working with my own simple pop3 test server and noticed thunderbird also K-9 and even Gmail seem to send some unstandard commands to the server causing an error. FairEmail however works fine. The server is a simple pop3 for local testing can anybody explain why your email clients are not compatible with pop3 standards perhapse how you deviated from the standard?

Hi Team,

Regarding replying previous email, I have tried several time to attach files or photos, but the app will be closed automatically. Do I need to do any settings for it?

However, for creating new email, there is no problem for attaching files.

Best regards, Tomas

I've recently downloaded thunderbird as I've been sick of outlook on Android for a long time. In general, I do prefer it a fair bit over outlook, however, the search function doesn't work at all.

Are there any workarounds for this or is it a bug that the Devs are in the process of sorting. I use the search function a lot with my emails, currently it's just not possible on Thunderbird at the moment.