Thunderbird dla Androida — Fora społeczności

I have been Using Thunderbird for about a month. I have configured three accounts, gmail, outlook and breezelineohio and view mails in the unified inbox folder. This morning I started getting a “Certificate Error – Check your server settings” on my Android phone and tablet. I am unable to get mail sent to my breezelineohio account. Mail to gmail and outlook are working correctly. Also, the thunderbird windows 11 app is receiving mail sent to my breezelineohio account correctly. I only have a problem on the android phone and tablet.

The following is a chat I had with ChatGPT concerning this problem. I have italicized ChatGPT responses.

ME: I'm getting a message on my Android tablet that states that my email client Thunderbird has requested a certificate. It says that agreeing to this request will allow the application to use the certificate with service from now on. Is this something I should be worried about? Is it a scam?

ChatGPT: This is not necessarily a scam, but I recommend that you do not approve the certificate request until we determine why Thunderbird is asking for it.

The message you're seeing on your Android tablet sounds like a legitimate Android security notification.

What does the message mean? When Thunderbird requests a certificate, Android may display a message similar to:

Thunderbird has requested a certificate. Agreeing to this request will allow the application to use the certificate with this service from now on.

This usually means Thunderbird is asking permission to use a digital certificate stored on your tablet.

Digital certificates can be used to:

Verify your identity when connecting to certain email servers.

Authenticate a secure connection to an email service.

Access email services that require client certificates.

However, most ordinary personal email accounts do not require a client certificate.

What should you do? Do not tap Allow or OK yet.

If there's a Cancel button, select it for now.

Do not install any new certificates or enter passwords in response to an unexpected prompt.

Check whether Thunderbird continues to send and receive email normally.

If this is Android's genuine certificate-selection dialog, it is not itself evidence of a scam. However, an unexpected certificate request deserves investigation.

Thunderbird has been known to display certificate requests when an email server asks for certificate-based authentication, even when the user normally signs in with a password.

I have two questions Are you using your Breezeline email account with Thunderbird on your Android tablet, or a different email account?

Does the certificate message show a server name or email address? If so, what does it say?

You can also send me a screenshot of the message.

With that information, I can help determine whether this is a normal Thunderbird security request, a configuration problem, or something suspicious—and whether you should allow or deny it.

ME: I am using my Breezeline email account with Thunderbird on my Android tablet, and the certificate message does show my email address and server name.

ChatGPT: Thank you. That helps narrow down the problem.

Since you're using Thunderbird on your Android tablet with your Breezeline email account, and the certificate request displays your email address and a server name, this may be a legitimate Android security request rather than a scam.

However, I recommend that you do not approve the certificate request just yet.

Thunderbird normally connects to Breezeline using your email credentials and an encrypted connection. It generally should not need a personal client certificate.

One thing I'd like you to check What is the exact server name displayed in the certificate message?

For example, it might look something like mail.example.com.

Please type the server name exactly as it appears. You do not need to provide your full email address.

Once I know the server name, I can help determine whether the request is associated with Breezeline's email service and whether it is safe to approve.

ME: mail.breezelineohio.net And also the mail from the Breezeline does appear to be working properly.

ChatGPT: That's good news! Since your Breezeline email is sending and receiving messages properly in Thunderbird on your Android tablet, I would not approve the certificate request at this time.

The server name you provided, mail.breezelineohio.net, is consistent with your Breezeline email domain.

My recommendation When the certificate request appears, tap Cancel rather than Allow.

Continue using Thunderbird normally.

If your email continues working, there is no immediate reason to approve the request.

Do not delete your email account or change its settings.

I do not see an immediate reason to suspect a scam based on what you've described. However, a matching server name alone doesn't prove that a certificate request is trustworthy.

I verified Breezeline's official settings Breezeline confirms the following configuration:

Setting

Correct value

Incoming server

mail.breezelineohio.net

Incoming port

993

Outgoing server

mail.breezelineohio.net

Outgoing port

465

Security

SSL/TLS

Authentication

Normal password

These settings do not normally require a personal client certificate.

One final question: Does the certificate message appear every time you open Thunderbird, or does it appear only occasionally?

That will help me determine whether we should investigate a Thunderbird setting or simply dismiss the request.

ME: I just started getting this message when I start up both my phone and my tablet. The message reads, Certificate Error, Check your server settings. It just started today on the tablet and the phone. Since both your Android phone and tablet started displaying the same Thunderbird certificate error today, November 8, 2026, that is an important clue.

ChatGPT: I suspect the problem may be with Breezeline's email server certificate rather than either of your Android devices.

Here's why:

Thunderbird was previously working on both devices.

Both devices began reporting certificate errors on the same day.

Both connect to mail.breezelineohio.net.

You haven't reported making changes to either device.

A server certificate may have expired, been replaced, or developed a configuration problem. Thunderbird checks these certificates to ensure it is connecting securely.

For now, do not approve an unfamiliar certificate or accept a security exception. Also, don't uninstall Thunderbird or delete your Breezeline accounts.

What I found I checked for reports of Breezeline problems today. I could not confirm a widespread Breezeline email certificate problem.

I also verified that Breezeline still lists mail.breezelineohio.net as its official Thunderbird mail server.

Breezeline

What I suggest next Because the problem appeared simultaneously on both devices, I would first wait to see whether Breezeline corrects a possible server-side issue.

If the error continues, contact Breezeline and ask whether the SSL/TLS certificate for mail.breezelineohio.net has recently changed or expired.

One important question When you dismiss the certificate error, can you still receive NEW Breezeline email messages in Thunderbird on both your phone and tablet?

I'm asking specifically about new messages, not messages already stored in Thunderbird.

Your answer will help determine whether the certificate error is preventing Thunderbird from connecting to Breezeline's server.

ME: I went to Gmail.com on my Windows 11 PC browser and sent a test email message to my Breezeline account. I went to Breezeline on the PC and the message did show up in the Breezeline browser email. However, the message did not show up on either the tablet or the phone. It did show up in the Thunderbird email client on the PC.

ChatGPT: Your test tells us quite a bit. Breezeline is receiving your email correctly, but Thunderbird on your Android phone and tablet is having trouble connecting to the Breezeline mail server.

Here's what your test established:

Email application

Result

Gmail on Windows 11

Test message sent successfully

Breezeline Webmail on PC

Message received

Thunderbird on Windows 11

Message received

Thunderbird on Android tablet

Message not received

Thunderbird on Android phone

Message not received

What I think is happening Because Thunderbird on your Windows 11 PC works, but Thunderbird on both Android devices stopped working on the same day, I suspect one of the following:

An SSL/TLS certificate compatibility problem affecting Thunderbird for Android.

A certificate change on Breezeline's mail server that Android is rejecting.

A Thunderbird for Android issue involving certificate validation.

This does not look like a typical email scam. It looks more like a technical connection problem.

What I recommend Do not delete or reinstall Thunderbird on either Android device yet. We should first identify exactly why Android is rejecting the certificate.

Let's start with your tablet.

Open Thunderbird on your Android tablet.

When the message "Certificate Error — Check your server settings" appears, look for a button labeled Details, More information, or something similar.

If you see one, open it.

Look for wording such as:

Certificate expired

Certificate not trusted

Hostname mismatch

Unable to verify certificate

My next question When the certificate error appears on your Android tablet, does it give you a Details button, or does it simply display "Certificate Error — Check your server settings" with an OK button?

Once I know that, I'll walk you through the next step. I would prefer to correct the problem without disturbing your existing Thunderbird email accounts.

At this point I terminated the chat. I still have the problem but I can check mail to my breezelineohio account on the Windows 11 Thunderbird app. Any thoughts?

Yesterday while using Thunderbird on Samsung android phone the contents of my inbox completely disappeared. I searched Thunderbird's other folders such as Trash, Spam & Archive et al to no avail. This is disasterous for me. I see from a Goggle search that this is not uncommon.

When the font size is increased, it becomes impossible to scroll on the screen where you choose whether or not to save your password in your account settings, preventing you from proceeding further.

Hi, i have been using Thunderbird on Android with Talkback since I am blind. The app is excellent, but I found a bug. When I use the search function for example filtering the emails for a certain expression, the result list is not accessible with Talkback. Phone Oneplus 12R, firmware android are the lateAst. Please, identify the issue and fix it.

The app is perfect for me, except the text in the inbox page is so small 😭

Can this be changed? Can we get an option for it in settings?

It would be wonderful to have font size and style options.

Thanks

Hello,

I'm trying to add accounts through a QR code from Windows onto an old Xiaomi Redmi phone running Thunderbird 23.1 (32). FWIW, it's running a custom ROM with Android 13.

Google didn't help: I find no Settings in the main menu, clicking on "Get started" displays no QR code option, and if clicking on "K-9 settings", I'm prompted for passwords later.

What's a girl to do?

Thank you.

Hello Since I changed my TB Android incoming server setting from POP to IMAP, Android has repeatedly reported app crashes. It asked me to clear cache, which I tried. See img attached. Eventually it said it was putting the app into deep sleep. Yesterday, after I sent an email to a gmail acct I was unable to find a copy of the email in a sent folder, there wasn't any Sent folder. There were only 2 folders, Inbox & Outbox. I expected there to be Sent & Draft folders. Eventually I discovered via Manage folders an Inbox.sent & Inbox.drafts. So I tried to change folders so Sent & Drafts are at the same level as Inbox & Outbox. Yesterday there were approx 26 emails in the Inbox. This morning there are 3 new emails in the Inbox & the 26 emails have disappeared & Inbox.sent, Inbox.drafts have disappeared. The 3rd & 4th attachments show the current folder settings. My TB Desktop incoming server swrting is POP. Please tell me what I am doing wrong & what I must do to be able to see all my emails, received & sent. Thank you

I have been trying to set up Thunderbird Mobile on my Android phone. I scanned the QR code to export my settings. However, when I open the app on my phone, the only options I have are "Add an email account", or "Sign in with Thundermail". The instructions state that clicking on "Get Started" should bring up the option to "Import Settings" but it does not.

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

I have emailed 7th August to what appears on my mobile from Thunderbird settings just a review address. I explained that I have not received in Thunderbird any emails from my BT email system since Monday 22 July which happens to be the date shown on my mobile phone as the last date for your update. I can send emails via Thunderbird but not receive messages. The email address I use is john.morris@deritter.org.uk which goes to john.m280@btinternet.com I am sending this message from my laptop as it is easier to write that way and I stand a better chance of getting a reply than on my mobile Thunderbird.

Could you please let be know if your settings update on 22July caused the problem or what else needs putting right.

Another question. BT have a Spam folder to which many important emails are directed. These are not collected by Thunderbird which does not have a Spam folder. This means that if verifying codes are sent to my email address I can't recover them.

I am otherwise very pleased with Thunderbird and would just like these points investigated. Kind regards John Morris

Moved to Thunderbird for Android product

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I have numerous Ionos email addresses. No problem seeing all received emails in Thunderbird app on my Windows PC. But Android app does not show some emails, despite synchronising numerous times. Problem is often with emails not showing in the unified inbox on the Android app. Also a problem with sent emails not showing. Today I looked for an email I had sent four days ago, and it was not in my Android sent folder. Synchronised, still not there. Synchronised again, still not there. Went online to Ionos and opened the sent email. Synchronised Android Thunderbird again and then it appeared. Why can't Anroid Thunderbird see certain emails? Problem seems to be especially bad with emails I have previously opened in Thunderbird on my Windows PC. Doing so seems to make the emails invisible to Android Thunderbird.

I'm using a Galaxy22 and have T/b for Android installed and ready to go. I've followed all the directions to import everything from my T/b on my desktop, which is the latest as I do automatic updates. But when I open T/b for Android, I see something called "unified inbox" with absolutely nothing in it, just a blank screen and a "compose message" icon on the bottom right. Where's my stuff? Please help! I can't handle Samsung email anymore, it won't send out any messages.

Jennifer