Why is a suspect email prevented from being forwarded

Today I received a suspicious email from wilfred.bayer.lsr8a@sewjp.jolorvex.world. When I tried to forward it to report@phishing.gov.uk, it remained in the mobile app's O… (read more)

Today I received a suspicious email from wilfred.bayer.lsr8a@sewjp.jolorvex.world. When I tried to forward it to report@phishing.gov.uk, it remained in the mobile app's Outbox and a message appeared as a notification: "Failed to send a message. Reject for policy reason." Then I took a screenshot of as much of the content as I could and attached it to a new email, sending it to the same address. This too remains in the Outbox. What is the problem?

Solved 4

How do I change "load up to 1000 more" to "load up to 100* more", and will loading 1000 more actually slow Thunderbird down? *100 (for example).

TB crashed so I uninstalled/reinstalled it. As part of the reinstallation, I selected the "load more" value as 1000 more. This was done rather casually and without any co… (read more)

TB crashed so I uninstalled/reinstalled it. As part of the reinstallation, I selected the "load more" value as 1000 more. This was done rather casually and without any consideration. Afterwards, I thought perhaps this might slow Thunderbird down. Is that true? And how do I change "1000 more" to some other value? I've searched extensively but can't find a solution anywhere. Thanks, Ian

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mobile thunderbird email account desks we inform that my mozilla thunderbird email account setup do it processing ok, yes /no rights activists my with us share, please

mobile thunderbird email account desks we inform that my mozilla thunderbird email account setup do it processing ok, yes /no rights activists my with us share, please … (read more)

mobile thunderbird email account desks we inform that my mozilla thunderbird email account setup do it processing ok, yes /no rights activists my with us share, please

Solved 1 9

Add HTML signature file in TBA

Greetings, Question 1: How can I add an HTML signature file for an account in Thunderbird for Android by referencing a file on my phone? Or, something similar that will a… (read more)

Greetings,

Question 1: How can I add an HTML signature file for an account in Thunderbird for Android by referencing a file on my phone? Or, something similar that will accomplish the same thing (i.e., HTML email .sig).

Background: In Thunderbird on my Desktop (currently using 140.10.1esr), I can go to Account Settings, select an email account, check the "Attach the signature from a file instead (text, HTML, or image):" and then "Choose..." a file I created on my local machine. My file is HTML (e.g., mysig.html) and references an image (in the same local directory). I want to replicate this in TBA.

Question 2: If there is no way to do this (the functionality is not purposefully there and there is no work-around to fool TBA into behaving properly), is there a place I can submit this request to the developers?

Thanks,

Jarvis

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Push works intermittently

I have set up Push Notification and have a small blue icon at the top left of the screen and I will get notifications but then I notice it has gone quiet and the little i… (read more)

I have set up Push Notification and have a small blue icon at the top left of the screen and I will get notifications but then I notice it has gone quiet and the little icon has disappeared so I have to close Thunderbird and then restart it to get the icon back at the top of the screen. Any suggestions please as to what is causing this.

Solved 1 63

Version 19.0b1 text select color doesn't show up in message compose window

When I select text in message compose window, the text select colour remains white, same as the background colour. I'm using dark theme in message composer just to avoid … (read more)

When I select text in message compose window, the text select colour remains white, same as the background colour. I'm using dark theme in message composer just to avoid this problem.

Miui - android 10 I think an update to Thunderbird broke this. Else it was working perfectly.

Solved 2 36

What does this button do? What did it do & how do I undo it?

Hi, I had selected a couple of emails and went to press the menu button dots, but hit this button instead. Emails vanished. How do I undo what I did? I can't find a dumm… (read more)

Hi,

I had selected a couple of emails and went to press the menu button dots, but hit this button instead. Emails vanished.

How do I undo what I did?

I can't find a dummies guide to the basic android app interface.

Thanks

Solved 1 54

Automated email states "Your email client does not support HTML"

The automated email from one sender states in the Inbox summary that the email client does not support HTML (TB app for Android). Presumably the message format is changed… (read more)

The automated email from one sender states in the Inbox summary that the email client does not support HTML (TB app for Android). Presumably the message format is changed accordingly. I don't see a setting for incoming email formatting. Can you help? Inbox summary view and partial view of opened message below.

Solved 2 172

Unified inbox stopped working

Hi. I use Thunderbird Android 17.0 on my phone and tablet. Everything is great on the phone. On the tablet, unified inbox worked fine until two days ago. Now, no email go… (read more)

Hi. I use Thunderbird Android 17.0 on my phone and tablet. Everything is great on the phone.

On the tablet, unified inbox worked fine until two days ago. Now, no email goes into the unified inbox and I have to open accounts individually to see email. The unified inbox still shows, but the last email in there is from two days ago. I did not change any settings and berichten that the checkbox is checked to show the unify inbox.

What cohort have caused this and how can I fix it?

Solved 3 1 36

Trouble Syncing from phone with desktop getting OAuth 2.0 error

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 in… (read more)

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

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How to transfer emails from Thunderbird Desktop to Thunderbird Android?

Hi, How do I transfer emails from Thunderbird Desktop to Thunderbird Android? I have successfully imported my settings, but I want to add all my emails that are currently… (read more)

Hi,

How do I transfer emails from Thunderbird Desktop to Thunderbird Android?

I have successfully imported my settings, but I want to add all my emails that are currently on my desktop.

How do I do it please?

Solved 4 9

Email notifications and updates

Hi team. Recently, I downloaded the app, but I noticed that the incoming emails are updated every 15 minutes. Could you please reduce the time into 1 min? Also is there a… (read more)

Hi team. Recently, I downloaded the app, but I noticed that the incoming emails are updated every 15 minutes. Could you please reduce the time into 1 min? Also is there any notification for incoming emails? I made folders for better correspondence with clients. Still there is no notification for incoming email.

Solved 2 54

K-9 Mail suddenly stopped to work.

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… (read more)

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.

Solved 2 9

Missing folders in email account after Exporting from Desktop Thunderbird

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 Out… (read more)

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.

Solved 2 63

Automatically complete email addresses as they are entered and generate the email address from the user's full name.

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 automat… (read more)

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

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How to change my password

I am not receiving emails on my phone. I have had to change my password on my laptop but don't know how to do that on my phone. It would be very helpful if you could tel… (read more)

I am not receiving emails on my phone. I have had to change my password on my laptop but don't know how to do that on my phone. It would be very helpful if you could tell me how to do it. Thank you. Nick

Solved 2 90

Thunderbird for Android sub folders

Within my Outlook.com email account i have an archive folder with 36 sub folders. In the Thunderbird app for Android only 2 of these sub folders are visible. I cannot fi… (read more)

Within my Outlook.com email account i have an archive folder with 36 sub folders.

In the Thunderbird app for Android only 2 of these sub folders are visible.

I cannot find any setting that to resolve this issue

Solved 7 63