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I don't know if I just have something configured wrong or if this is a bug.

In case it is relevant, I originally came from the K-9 app and imported my settings to the new Thunderbird app. K-9 is now uninstalled.

I have more than one account, and each inbox is set to show in Unified Inbox.

When I get any new email for any account, I actually get 2 of the exact same notification for each email. There isn't actually 2 emails with the same sender and subject line, when tapping on either of the notifications the app opens and there is just the one email.

I thought maybe Unified Inbox had its own notification setting which might explain why I was getting notified twice, but if there is I cannot find it.

I could always try removing all the accounts and re-adding them, but since I have quite a few I would like to avoid that if I can (and why I chose importing from K-9 rather than manually adding and configuring each one).

Thanks for any assistance.

There are two pdf files attached to an email I received. When selecting view all and then save all, one file gets saved with the name of the other file, and a zero byte file is created with correct name. The other file is not saved. This erroneous behaviour is repeatable.

Is there a plan to replicate the desktop spam filter in android? My ISP does not filter spam, but the desktop Thunderbird takes care of 95% of them. In Android, they just appear in my inbox and I have to manually delete them. Most days I get around 30 spam emails, ss it's a pain. I'd very much like to have the same experience with spam in android as I have in desktop.

I am a senior who has no desire to be in clouds, social media, etc. I have been using Thunderbird email on my laptop for about a year and a half now. Thank you for allowing me to keep my pop3 account, I have been very happy. I just want to have email on my phone because I like to get notice of email but I like to delete it and collect it on my laptop because it remains on the server. I periodically access the laptop and do all banking, etc. from there. Completely old school with local storage. Everything I have looked up said that I could still keep my pop3 account on my phone. I have a new Samsung A57 that I am trying to set up. The old phone had Outlook but it is locked out so I have to start from scratch. I thought I would rather do that with you than the others that seem to be taking all of our personal data over and leaving us no choice in how we would like to work. Your assistance would be greatly appreciated. Thank you

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.

everything is excellent in thunderbird mobile except the white widget !we really need a dark one! look the attachment how ugly it looks compared with the rest of the widgets !

I got these instructions from Charter.

How to set up Spectrum Email on third-party clients

Dear Spectrum customer,

Here's some helpful info you may find useful after our conversation.

You can easily set up Spectrum Email on your cell phone, laptop or other mobile devices.

To get started, make sure you have the following settings:

   Username: Your full Spectrum email address

   Password: Your Spectrum email password

   SSL: On

   Protocol: IMAP

   Incoming Server Port: 993

   Outgoing Server Port: 587

   Requires Authentication: Yes, or checked

You'll also need to enter your incoming email server and outgoing email server. The server that allows you to send mail is the outgoing or SMTP server. The server that lets you receive mail is referred to as an incoming, POP or Mail server. Those will vary based on your domain, which is the part of your email address that follows the @ symbol, such as charter.net.

The problem is with connection security. The only 3 choices you offer are none, start tls or ssl/tls If you add a choice of just ssl my roadrunner email will work just fine.

This is what senders see when they try to send me an email Subject: Mail System Error - Returned Mail with Subject: Test From: Mail Administrator <Postmaster@msg.pkvw.co.charter.net> Date: 4/7/2026, 10:36 AM To: ksmith29@carolina.rr.com This Message was undeliverable due to the following reason: Each of the following recipients was rejected by a remote mail server. The reasons given by the server are included to help you determine why each recipient was rejected. Recipient: <Ksmith29@carolina.rr.comh> Reason: 5.1.1 <ksmith29@carolina.rr.comh> Recipient address rejected: User does not exist. Please reply to <Postmaster@msg.pkvw.co.charter.net> if you feel this message to be in error. Reporting-MTA: dns; p-mtain018.msg.pkvw.co.charter.net Arrival-Date: Tue, 7 Apr 2026 14:36:37 +0000 Received-From-MTA: dns; p-impin025.msg.pkvw.co.charter.net (47.43.26.180) Original-Recipient: RFC822;<ksmith29@carolina.rr.com> Final-Recipient: RFC822; <ksmith29@carolina.rr.com> Action: failed Status: 5.1.1 Remote-MTA: dns; mail-twc-com.msg.pkvw.co.charter.net (47.43.26.4) Diagnostic-Code: smtp; 550 5.1.1 <ksmith29@carolina.rr.comh> Recipient address rejected: User does not exist. X-Actual-Recipient: RFC822; <Ksmith29@carolina.rr.comh> ForwardedMessage.eml Subject: Test From: Kevin Smith new <ksmith29@carolina.rr.com> Date: 4/6/2026, 4:43 PM To: ksmith29@carolina.rr.com Attachments: ForwardedMessage.eml 2.7 KB

Notice the h it puts in after my rr email address Thank you, Kevin

Is there anyway I can shift all my folders,storage and local from my pc to my tablet at the same time as I load the app? In otherwords I want exactly the same email situation on my tablet as that is now on my pc .I wish to ditch my obsolete pc. Perhaps someone can steer me in the right direction.

When composing emails in Thunderbird for Android, I can't find any options to format text.

I can't select a typeface (even the most basic html tags for serif/sans-serif/monospace aren't available) or even make text bold, italic or underlined.

This makes it very hard to create emphasis where necessary, and it feels like ancient emails from before HTML formatting.

Is there something I am missing, or does this depend on the phone?

NB: I can do this with my messaging apps and the Gmail app, which I prefer not to use.

Sony Xperia 10 V Android 14

Lorsque je sélectionne plusieurs messages dans la boîte de réception et que l’appuie ensuite sur la corbeille, il arrive souvent que les messages reste t dans la boîte de réception.

I'm using the Thunderbird email client to connect to a few of my Zoho emails. This has worked perfectly well before.

It has stopped syncing emails since yesterday. When I try to reconnect the account I get an error like this:

readStringUntil(): end of stream reached. Read: "" while waiting for

Is there an active issue with this? Anything I can do to fix?

Thanks !

The unified inbox will not sync. I have three email accounts and in order to get them to sync or gather mail, I have to open each individual inbox and sync them. It is very annoying because the whole idea of a unified inbox would be being able to review all incoming mail in one screen! Any solutions, please?

Hello,

is it possible to use for adressing mails a adressbook or stored adresses in the App?

Like in the Thunderbird Desktop Version?

Regards Johannes

Thunderbird will not forward to Website of Outlook (or other services like Yandex) for logging into account to setup access via OAuth 2.0. The settings were imported from Thunderbird for Desktop via QR-Code and are working there fine. But not on Android. Can this problem be solved?

Hi, I have been a Thunderbird user for 10 years. I recently decided to install the mobile version on Android (Samsung Galaxy 23). Everything went well, I synchronized accounts using QR codes, but I don't know how to synchronize folders with emails. I found a couple of pretty stupid methods on the net using conversion to PDF and uploading them to the phone, but that doesn't work for me. I would like my PC and phone to automatically synchronize and when I receive an email in my inbox, it should be displayed on both devices. Is this possible and if so, how do I achieve it? Thank you in advance for your answer, SEAS