All Products Community Forum

On my Android phone, emails from my thunderbird account are no longer synching. I no longer get emails on the phone app. I currently have version 17 installed, and nothing happens when I tap on sync account. The only thing showing in the window is "Load up to 100 more". And nothing happens when I tap it. I'm lost and don't understand whats happening.

¡Hola a todos!

Llevo días intentando añadir una cuenta de outlook a la aplicación del móvil (en el ordenador, tras varios intentos, sí lo he conseguido).

Se trata de una cuenta personal y aunque ya he habilitado IMAP, no me da la opción de habilitar SMTP, que es lo que me está fallando.

El error que aparece es:

"El servidor devolvió el siguiente mensaje: Authentication unsucessful, SmtpClientAuthentication is disabled for the mailbox."

He probado también a cambiar el servidor por smtp.office365.com, pero tampoco lo consigo de esta forma. ¡Ah! y está con Oauth2 también.

Me tiene un poco desesperada el tema, así que toda ayuda es bienvenida.

¡Muchísimas gracias!

Saludos.

I have just reinstalled T/B (3-4 times now). Scanned barcode from notebook. Installed ok. This mobile T/B DOES NOT give me any option to add folders. Only: inbox, outbox, drafts, sent, deleted. I at least want (1) extra folder to store messages. How do I achieve this? Thanks My laptop T/B works well (on Ubuntu)

My K-9 in Android suddenly stopped to work a couple of days ago. The server asks for autentification. I haven't changed anything. I've uninstalled and reistalled the app and restarted my phone a Samsung S22 ultra several times. The app is recognating some settings automatically but it doesn't accept my old password with 16 letters in a group of four with highfens in between. What shall I do, please? Something wrong with the server? The version of the app is 17.0 updated March 16th 2026.

I have installed Thunderbird on my Samsung phone and synced it with the desktop. All three of my gmail accounts came up okay, but when I go into them I do not get the inbox, only outbox. When I click on each account to try to sign in I get an error that says "OAuth 2.0 is currently not supported with the provider". How can I sign in to my gmail accounts on my phone in Thunderbird?1

In Thunderbird for Android, Thunderbird does not notify a received email, when: I have created a setting with a rule/line, where this email is moved to a underlaying folder.

I exported all my 5 email accounts from Desktop Thunderbird to mobile Thunderbird. All were successful except for two accounts which only have one folder visible, the Outbox. All accounts are sycnhed and Manage Folders displays no folders. Help please to resolve problem.

When trying to add my Outlook account, I am stuck at the authentication step. The webpage doesn't work. The screen recording I've attached is what happens on the second time and later; the first time it shows a different page (saying "The app named Thunderbird will be granted these permissions [... a list of permissions]; allow?" and I clicked "Allow") but it doesn't work either.

There is a "在 浏览器 浏览器中打开" option ("Open in browser browser" haha; it refers to Xiaomi system browser") but it opens a "Cannot find this page" error page. The "在 Edge 中运行" ("Run in Edge") button is unclickable.

Translation of the screen recording: Trying to log in to Thunderbird Android? Only continue if downloaded the app from trusted app store or website. [Cancel/Continue]

Screen recording at https://wwblo.lanzoub.com/itYge3mz8rlc (extract code: cnme)

I have The Thunderbird email client on my Android phone. It worked for a while, but is no longer downloading emails. The only thing that shows is "Load 100 more" , but when I tap on it it does not load anymore emails.

Sometimes I got a problem with Gmail where I get the error "Too many simultaneous connections", both desktop and Android. I found that Gmail servers support 15 connections. I could reduce the number of connections for desktop in the config editor, but I would like how to do that in the Android app. Some times it creates a lot of connections, and I think the numbers stack up together with dead connection when I reboot my router and get a new IP, so I'm wondering how to set to get just one or two simultaneous connections on Android.

I cannot connect my gmail account to Thunderbird for Android (although no problem whatsoever in Thunderbird for Computer). It always fails when Thunderbird tries to connect the SMTP outgoing server. Then it says after a while NETWORK ERROR failed to connect to smtp.gmail.com .... I am using the standard IMAP configurations. Please help.

I am unable to send emails from android Thunderbird, I have something called a unified mailbox plus 2 that have my correct email address. When I send an email it sits in the outbox of the first one with my correct email address and won't send even after selecting send messages. Why do I have a unified mailbox plus 2 others? Thanks

Hello, I can't find a way to connect my contact database to Thunderbird for Android. How can I set this up so that email addresses can be easily added or imported automatically in the entry fields of a new email? Thanks in advance! Regards