Thunderbird Community Forum

Hi - Thunderbird has not fetched any emails from the past two days. I am running 153.1.0esr (64-bit) on Windows 10. If I remember correctly, I downloaded that version four days ago. I vaguely recall getting some message somehow that I needed the ESR. (Sorry I don't have a very good memory!) Thunderbird did fetch emails for two days after that...but I suppose it's possible that I didn't restart Tbird right away, so maybe it was still using an older version until two days ago?? My ISP is RCN/Astound. Last week, I changed my password on both the RCN webmail and on Thunderbird, and I could send and receive after that. Tonight, when I discovered that Thunderbird wasn't fetching, I also tried to send an email, but I initially received an error message. It was something like "Your message was unable to be saved" and then there was something about saving it as a draft. I've seen that message many times over the years, but I don't remember exactly what it said. Thinking it might be a password requirements issue, I changed my password again. I don't know if that mattered, but I am now able to send emails -- but I still can't fetch them. I turned off my Windows firewall and Windows real-time threat protection. That didn't help. I saw this thread https://support.mozilla.org/en-US/questions/1531863 tonight and set "network.dns.disableIPv6" to "true." That didn't help either. I would appreciate any assistance you can provide. Though I am not a expert, I am happy to provide more info if needed. Thank you in advance for your help.

Dear Sirs,

I want to configure my email ID sundar@srikrishnalogistics.com (provided by rediffmailpro.com) in Thunderbird.

I have already tried configuring the account.

• • • • • • • • • • • email from support@rediffenterprisepro.com

To configure a Rediffmail Pro email account in Thunderbird using IMAP, use the following settings:

1. Open Thunderbird Go to Account Settings >> Account Actions >> Add Mail Account. Enter: Your Name: User's name Email Address: sundar@srikrishnalogistics.com Password: Email account password Click Configure manually.

2. Enter IMAP settings Incoming Server (IMAP) Server: imap.rediffmailpro.com Port: 993 Connection Security: SSL/TLS Authentication Method: Normal Password Username: Full email address

Outgoing Server (SMTP) Server: smtp.rediffmailpro.com Port: 587 Connection Security: STARTTLS Authentication Method: Normal Password Username: Full email address Then click Re-test → Done.

3. Verify synchronization After configuration, Thunderbird should synchronize the mailbox folders with the Rediffmail Pro server.

Important: If the user wants all emails to remain on the server, ensure the account is configured as IMAP, not POP.

Since all the folders are visible but only a few emails are appearing in Inbox, Sent Items, and other folders, kindly check the following:

   Open Thunderbird >> Account Settings >> Server Settings and confirm that the account is configured as IMAP.
   Right-click the email account in Thunderbird and select Subscribe.
   Ensure that all required folders are selected/subscribed.
   Right-click the account and select Get Messages to initiate synchronization.
   Please allow some time for Thunderbird to complete the synchronization, especially if the mailbox contains a large number of emails.

• • • • • • • • • • • • even after doing the above problem exists

i have done the above but still problem is there. All the folders are appearing in Thunderbird, but most folders contain very few emails or no emails at all, whereas there are many more emails available in the webmail.

Kindly guide me in configuring Thunderbird properly so that all my emails and folders are synchronized correctly.

Regards, Sundar Ram

I have two email accounts (one is imap, one is pop3) in my older version of Thunderbird. They have both worked normally until last week. The pop3 account continues functioning normally, but now when I select (in Thunderbird) the imap account, the mouse cursor starts showing the hourglass and the bottom status bar reads "loading message" . I've closed and restarted Thunderbird, but this doesn't make any difference. The imap account is stuck on "loading message" and doesn't download anything. I also checked my imap email account on the ISP's website, there is new email there waiting to be downloaded,. What can I do to troubleshoot this?

ps...a few weeks before this problem surfaced, I had all my email (inThunderbird) disappear, so I renamed the prefs.js file and that fixed the problem. My email worked normally after that, until this current problem occured.

Hello, T-bird gurus! Hoping someone, or a collective of someones, can help me out, as I just started using T-bird again after an intermission of over a decade, and I'm experiencing several progress-stifling and highly frustrating issues that unless easily overcome, will soon have me doubting my choice and abandoning the attempt (although I'd love not to have to). Whenever a new message is received, T-bird's pop-up notification lets me know that it has arrived, and the new message counter in the taskbar also displays an updated count, yet, more times than not, the inbox simply refuses to display the new message/s. When this happens, even if I switch out of the inbox into another folder and then back to the inbox, the new message/s are displayed (but the counter in the taskbar icon DOES reduce the count, as if read). If I was lucky enough to be looking at my monitor at the same time that the notification popped-up, and I was able to read who it's from before it vanished, and then performed a search for that specific sender, the search itself displays the new message, and I am even able to reply to or forward it from there, but STILL... no new message in the inbox once I return to it! Seems the ONLY way to get it to display in the inbox as it should is to close T-bird and re-open it... Then, there it is, sitting in the inbox, taunting me like a child that knows he's got your number when it comes to playing hide-and-seek (lil' booger!). Between this and my other T-bird issue (which I will put in a separate help request), it's got me ready to just pull the plug on TB and add my account to my company's Outlook... which I'd HATE to have to do, especially because it's setup through an enterprise account along with the rest of Microsoft's now full-subscription suite of programs that command a lifetime of automatic monthly payments in order to use them, so if I ever cut ties with that company, I might run the risk of losing access to my other email accounts. Not to mention the uneasiness that loading my passwords into that type of shared system has me feeling, in general. HELP!!!

"Webmail login works, Thunderbird successfully establishes an SSL connection to pop.centurylink.net:995, but the POP server repeatedly rejects the password."

Rob Hilton [redacted] @embarqmail.com

Hello,

While working today, I used TB normally to send and receive mail.

Today I wanted to forward one mail to a supervisor. After i click forward, the window appears. I add the receiver, and when i want to type in a text, I can't. Nothing happens. It doesn't matter what I do; it won't write anything i type. I can't even insert copied text; I can't change anything, like the forwarded text in the mail is locked.

I have various mail accounts set up in my Thunderbird. All of them used to work just fine until yesterday. Since yesterday I receive an error for one of them that "Login to server ... with user ... fails." I have a second account with the same mail provider which works just fine with the same configuration settings. The account in question used to work just fine for several years without any changes. I tried saving the account data, deleted it from Thunderbird and set it up again - no success. Same error message. Connecting to the mail account via browser with the same credentials works alright. At the moment I'm at a complete loss what could be the problem - anyone having some brilliant idea?

All recommended settings by the internet provider are correct but e-mails can not be sent using Thunderbird. I contacted the internet provider and they say that from their side everything is o.k. and that I must seek assistance from Mozilla as chosen e-mail client. Can you help please. Thank you, Zoran

i havent used thunderbird in some time as i usually just use the app on my phone. when i opened it last week a error message kept popping up asking me to input my password for my email server (shaw) , and it kept saying the password was wrong. i reset it on my server and tried again. same problem. i got frustrated and left it. now i opened thunderbird today and i dont get an error message but it is still not syncing to retrieve messages and i cannot send messages either

i checked all the settings and they seem correct. my husband's account is still fine.

is there a fix or do i give up?

i have local folders with contents i need access to, is there a way to move them somewhere so i can access them from my gmail account instead?

Thunderbird downloaded 610 emails from Yahoo then stopped in the same day. I've checked the https://support.mozilla.org/pt-PT/kb/thunderbird-e-yahoo#w_por-favor-verifique-o-seguinte-antes-de-pedir-suporte before and it's all like the page asks...

Can you help me further

Thank you

Thunderbird stopped downloading email in July 2026 on the same day an update was pushed. The problem showed up after an update to TB on 27 July 2026. The weird thing is that we have another account and it has no problem with that TB account downloading. I even moved the profile to another laptop. Yesterday it downloaded 25 of approximately 300 messages and stopped. I had a lengthy tech support call with Yahoo and they concluded the problem was Thunderbird. I've re-installed and updated the program. I've gone through multiple App passwords in an attempt to re-connect. The outgoing mail works. The web based Yahoo mail works. It's not an antivirus or firewall problem. I even archived most of the Yahoo mail from the web and tried to see if I could download messages if there were fewer of them. Even 10 or less would not download.

We have it set up as a POP3 account. The hard drive on the laptop in question has only 10% of its capacity filled. I accidentally removed the other account and had to set it up again yesterday using the exact same steps and it works without issues.
 Does anyone have any suggestions as to what I might try next?

Since about November 2025, all the mails I try to sent to @sfr.fr addresses (different recipients) fail and I get the following message: Sending of the message failed. An error occurred while sending mail. The mail server responded: <xxx.xxxx@sfr.fr> recipient domain rejected (blacklisted by local policy).

Please check the message recipient "xxx.xxxx@sfr.fr" and try again

I did not have this problem before. If I use Greenby's web mail (My email provider ), the messages are sent without any problem. I would very much appreciate some help to solve this problem! P.Y: pemy@pemyoung.plus.com

My normal inbox is a blue envelope at the very top of the left hand list. Recently, another inbox, a yellow folder further down, has appeared. It has a Trash above it. There are emails in it. There is nothing in the top Trash. My incoming emails seem to jump between these two. Also some emails seem to be disappearing. This is not ideal, and didn't used to happen.

Thunderbird has stopped receiving or sending email. I just tried to send a message and received the following error message: "Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) smtp.gmail.com timed out. Try again." This has been a problem for several days. Potentially since the last update. Please help. Thank you.

Goedendag, Ben zelf nieuw in Thunderbird. Ik heb diverse mailaccounts en ik zie een Verzamelmap staan met daarin ondermeer de Concepten en Verzonden mails. Deze zie ik liever per account weergegeven worden, kan dat?

Ik gebruik IMAP op al mijn accounts, na het instellen zie ik per account wel al mijn ontvangen mails staan, maar niet de verzonden mails? Ik denk dat dit inherent is aan mijn vraag, maar hoe kan ik dat dus oplossen?

Tot slot zie ik Mail-conversaties staan van berichten en hun antwoorden, maar dat wil ik helemaal niet. Ik wil gewoon alle berichten op datum & tijd gesorteerd zien staan. Hoe krijg ik er die conversaties uit?

Dank voor alle hulp alvast!

Groet, Pico