Thunderbird blocked by gmail Please check my outgoing smpt server settings (attached) and let me know what I need to change. My emails are getting blocked by `mailer-daemon` saying the addresses don`t exist. There is no direct method to block any domain or email address in Mozilla Thunderbird, but… Continue reading Blocking a Sender in Mozilla Thunderbird Aug 28, 2025 · If Gmail keeps giving you trouble in the browser, you can try signing in through an email client like Outlook, Thunderbird, or Apple Mail. Dec 11, 2023 · Tecnobits - Software - How to block email addresses in Thunderbird? Blocking unwanted email addresses in Thunderbird is an effective way to prevent spam and keep your inbox organized. Mozilla Thunderbird stopped receiving messages from GMail a few days ago. Click block. Jan 25, 2022 · Thunderbird is another email service with a lot of security features. Jul 7, 2020 · This problem began this afternoon, Google thought someone was using my login I indicated it was me, yet Google is blocking my access to my email client Thunderbird. 3. net to my own gmail address! What can be done to my Thunderbird outgoing message settings to satisfy the gmail checks, please? Rai Fenton <Message Delivery Failure report start> Mar 29, 2019 · does my gmail block Thunderbird?? - Google Account Community Help Center Community Improve your Google Account Google Account ©2025 Google Privacy Policy Terms of Service Community Policy Community Overview Enable Dark Mode Send feedback about our Help Center Hi. com to googlemail. Recently mail sent to gmail addresses is blocked as: Jun 30, 2020 · Thunderbird was working fine for a number of years, and then out of the blue I get this error message when I try to send e-mail: The Mail Server responded 554 5. Our From email address was for a domain different from Sonic's outgoing SMTP server. From how many times you open a message, the time of Aug 1, 2023 · Mozilla Thunderbird is a popular and reliable email client used by millions worldwide. It wasn't until Outlook was updated did the Gmail issues begin. Why are spam e-mails still coming through after activating the Bitdefender Antispam filter? Learn how to block a spammer and report undetected spam. If you use Thunderbird or some other “front end” to receive and send emails from and to your Thunderbird is a free email application that’s easy to set up and customize - and it’s loaded with great features! Sep 17, 2024 · Dealing with spam is a headache, but Thunderbird can help. I have confirmation from the Wall Street Journal Customer Support that delivery of their email newsletters and newspaper are being BLOCKED by Charter -Spectrum and NOT DELIVERED to Spectrum customers. Aug 19, 2025 · Gmail and Thunderbird for Android How to use gmail and gmail with oauth2 with Thunderbird for Android and K-9. Help Center Community Gmail ©2025 Google Privacy Policy Terms of Service Community Policy Community Overview Program Policies Enable Dark Mode Jan 23, 2018 · As it is setup now I can see my email in either Gmail or Thunderbird, (Thunderbird if I have "use unsecure apps" checked. You can exempt senders or domains in a blocked list so that their messages are delivered normally. Oct 25, 2023 · Il m'est impossible d'envoyer un email vers gmail avec ma messagerie Thunderbird (qui est à jour version : 115. We must know that Thunderbird saves email data in the MBOX file format, and Outlook has OST and PST file formats with unique characteristics. I am afraid of losing both email accounts if I configure improperly. They do. 0, you'll automatically be configured with IMAP. *Please note that with Thunderbird 3. Jan 19, 2025 · Gmail is allowing Thunderbird access to the calendar and to contacts, but not to mail! I get the prompts to allow access but still cannot send or receive email. I also uninstalled and reinstalled Thunderbird. Why? - Gmail Community Help Center Community Gmail ©2025 Google Feb 8, 2023 · Due to an increase in junk emails users of Mozilla Thunderbird email client wants to know how to block emails in Mozilla Thunderbird. Mozilla Thunderbird supports various email protocols like IMAP (Internet Message Access Protocol) and POP3 (Post Office Protocol). In set up configuration change the IMAP and STMP from gmail. . Jun 9, 2022 · Google has recently changed your ability to access your Gmail account from Thunderbird and Outlook. This article explains how to configure and use signatures in Thunderbird. I bought a new Android phone a few days ago and it seems that when the new phone was activated, Thunderbird on my laptop quit working. Over a few years I've used the Windscribe VPN to connect this wired PC, then on exiting the VPN my "internet access" has reverted to my "named-by-me" home network. The PROBLEM is Gmail is blocking my Thunderbird login from the wired PC. Nov 28, 2024 · Why do I see “admin_policy_enforced”, “App Blocked”, “unverified app” or “not approved” error/warning when logging in to Gmail? Please see Gmail and Thunderbird for Android. I updated Thunderbird and tried to enable insecure application in my GMail account, but it didn't help. Bitdefender Antispam is designed to work with mail applications like Mozilla Thunderbird and Microsoft Outlook. com not working issues with simple solutions. If I use my computer on someone else's connection, it won't login and I get a security alert later. Learn all about how Thunderbird's spam filters work and how to fine tune them. Learn more about Mozilla's Crash Reporter for Thunderbird. Our Thunderbird settings had been the same for years and worked fine until about a week ago. Sounds like you blocked some domain on your network or something else preventing you from pulling the messages. When I click allow, nothing happens. com. Nov 24, 2019 · I accidentally blocked Thunderbird from my Google account on the desktop and now I can't get me emails. How do I unblock it? Jul 7, 2023 · Learn how to stop unwanted emails on Gmail, Outlook, Proton Mail, Yahoo Mail, Apple Mail, and Thunderbird and use aliases to hide you email. This guide provides straightforward solutions to help you resolve these issues quickly and gain access to your account. I can't send emails from Thunderbird after I enabled two-step verification for the my Gmail account even after I generated an app-specific password from Google. Many people use Mozilla Thunderbird as their primary eMail application. Feb 2, 2024 · I use Thunderbird to grab emails from various accounts as POP to keep them on my desktop. This blog will help you to perform the process for blocking a sender in your account. Messages from approved senders are still subject to regular virus and spam protection provided by Gmail. Nov 7, 2025 · This article will guide you through the steps to take if you're having trouble sending or receiving emails while using Surfshark. When I enter my mail, it immediately disappears and is requested again ("the page is refreshing"). I click "Done", and it takes me to Gmail for authorization. Jul 2, 2025 · Thunderbird Not Downloading New Emails? Here are the best solutions to fix Thunderbird not downloading all new emails automatically. Thunderbird is the leading free and open-source email, calendaring, newsfeed, and chat client with more than 20 million active monthly users across Windows, macOS, and Linux. 1 (P4) Message Blocked due to Spam Content in the Message. Find out how to do it for Outlook, Thunderbird, and more. If you login to gmail, it will most likely give you a message at the top that a connection attempt was blocked, which you can click to unblock it and from that moment on, the email is most likely working again. I suspect Google revised their filter The best way to deal with this is to block that sender’s eMail address. Import Gmail to Thunderbird by using manual and professional solutions. So, what am I doing wrongly, and how can I fix it? The user name & password are 100% correct. ) So, two questions: 1) The "Filter" process is really cumbersome to permanently block senders of spam. However, like any other software Thunderbird may also encounter issues like not connecting to the server. Aug 19, 2025 · Troubleshooting Gmail login issues for Thunderbird for Android and K-9 Gmail login issues are common and can occur for various reasons, such as incorrect credentials, browser problems, or account security measures. Go to the Junk mail folder where spam messages are moved. Sep 26, 2024 · My Gmail accounts work perfectly well using Thunderbird as well as the old Outlook. Dec 31, 2024 · Before we delve into the installation and configuration process, it’s crucial to understand the compatibility between Thunderbird and Gmail. Apr 19, 2022 · These messages are being blocked, with a failure report being sent back to me. I use POP to get my gmail and send mail. If either of these two top-tier mailboxes considers the email to be suspicious, the email goes to spam. Jun 1, 2025 · How to block or unblock e-mail addresses on platforms like Gmail, Outlook, Yahoo, and more, ensuring control over your inbox and managing unwanted messages. com Port 465 SSL/TLS Authentication method: Normal password Incoming: imap. By default, this client blocks pixel tracking and attempts to detect and block phishing attempts before they hit your inbox. After many happy years using Thunderbird to manage several email accounts, yesterday I can no longer connect to imap. I suspect Google revised their filter Jul 9, 2024 · Blocking emails on Gmail: 1. Temporarily disable them and check if Thunderbird starts receiving emails. Working fine here, from the 8 gmail accounts I have and use every day. Jun 14, 2022 · I can log into them fine on the web, using gmail, but Thunderbird isn't allowed to connect yet I can connect to other accounts which are configured identically. The significance of this function can't be overestimated and the lac Hi, last week I started getting notifications that for all my Gmail accounts: I tried deleting and re-installing my accounts. Trusted by millions worldwide, it offers the easiest and most powerful way to block unwanted emails before they hit your computer or mobile device. Jul 18, 2025 · How to Manually Fix Thunderbird Not Working With Gmail? There are multiple conventional ways to fix the Thunderbird Gmail authentication failure issue, and among them, we are mentioning below some of the most prominent yet helpful ones. Oct 14, 2025 · Thunderbird not working with Gmail? Learn why Gmail blocks Thunderbird and follow step-by-step troubleshooting to fix it fast, including secure backup tips. This way you will stop all emails from that person or organization: Open your email app Microsoft Outlook or Mozilla Thunderbird. This particular report example is of failure when sent from my address rai@raisig. If Gmail works on my desktop and mobile using other apps, but not with the new outlook, then one would assume the problem would be with the new Outlook. Learn why Gmail IMAP fails and how to restore email access quickly. Moreover, it can detect all types of cyber threats in incoming emails, not just spam. Since then, we Oct 18, 2024 · Fighting spam in Mozilla Thunderbird can be effectively managed by using several built-in tools and additional plugins. I tried the option Jun 13, 2025 · Taking issue with Thunderbird email problems? See how to fix some of the common ones or opt for an alternative. (I use Thunderbird. May 9, 2025 · Learn how to block emails in Gmail, Yahoo, Outlook, and more. fr from Thunderbird on my desktop computer but I get a bounce from Orange when I send from my tablet (Gmail works OK) The only difference I can see in my outgoing message settings is that Thunderbird has SSL/TLS for security and the table email program is either SSL or TLS (I've tried both) Please check your connection, disable any ad blockers, or try using a different browser. People I email say, when they reply to my email, they get a non deliverable reply, even though I receive their reply. Recently I found myself setting up all kinds of filters as the email's cam into my Thunderbird Email Client Nov 15, 2024 · Import Gmail Emails to Thunderbird accounts with all attachments and metadata. The link for "Reset of password has been sent successfully" never appears in my email Microsoft OAuth Authentication and Thunderbird in 2024 Feb 8, 2024 · Cannot login to gmail account in Thunderbird, Oauth doesn't authorize thunderbird Thunderbird receiving repeat emails from gmail account plus normal password vs oauth Automatic Conversion of Google mail accounts to OAuth 2. So I figured, ‘Why not show you the steps on how to block a sender’s eMail through Thunderbird?’. I don't know what to do. This issue Thunderbird is the leading free and open-source email, calendaring, newsfeed, and chat client with more than 20 million active monthly users across Windows, macOS, and Linux. What is the difference between K-9 Mail and Thunderbird for Android? They look the same? In June 2022, K-9 Mail joined the Thunderbird family as the foundation for Thunderbird on Android. GMail works just fine because it is being accessed via typical HTTP and/or HTTPS ports (which are usually open in public places), but (as you have indicated) IMAP and POP use different ports, which are often closed off. Verify that your outgoing email is not being blocked Verify that your outgoing email is not being blocked by your firewall, VPN, proxy, antivirus software (which sometimes implements a proxy and intercepts email) or your Internet Service Provider: Oct 4, 2025 · Does a VPN affect emails, and what can you do if SMTP is blocked by the VPN on your Windows PC? Here are some of the best fixes. Note: If the user wants to permanently show Thunderbird block remote content then they just need to select “Allow remote content from [email address]” in the Options section. This filtration is offered on all Gmail accounts and works in the background without any user input to effectively keep the Primary Inbox free of 'automated' messages. I changed the From email address to be from sonic. These providers have a blanket view of tracking and use image Jul 9, 2023 · Allow Thunderbird to send backlogged crash reports on your behalf: Checking this allows Thunderbird to transmit crash reports at a later time if the initial crash was not able to submit the report at the time it happened (perhaps because the internet was not available). Read it to fix Thunderbird not working with Gmail issue. The Gmail permissions are fine. I suspect Google revised their filter How To Unblock Emails In Thunderbird? Are you having trouble receiving important emails in Thunderbird? In this helpful video, we will guide you through the process of unblocking emails in The best way to deal with this is to block that sender’s eMail address. One of Thunderbird's core principles is the use and promotion of open and decentralized standards. These apps often bypass temporary browser issues and let you access your emails smoothly. With advanced spam filters and real-time spam detection, MailWasher ensures that only the emails you want make it through. Dec 11, 2018 · Old answer based on incomplete question Somehow Gmail marked your device as insecure, and that is why you cannot connect anymore. Feb 23, 2024 · Thunderbird recognizes that it's Gmail and fills out the required fields. Set up your new g-mail account in Thunderbird -e-mail and password - click OK. Mar 15, 2022 · We use Thunderbird to send and receive mail through our Sonic accounts. Oct 20, 2025 · Looking to connect Gmail to Thunderbird? Find out here how to add Gmail to Thunderbird using automatic setup or IMAP, POP and SMTP settings. Download Gmail messages using Email Client – Instead of web browser access of Gmail, you can configure an Email client to download Gmail messages. You can use Outlook, Apples Mail, Windows Mail, Thunderbird. gmail. Block any unwelcome sender by setting filters with Clean Email or unsubscribe from unwanted lists. If you turned on Groups for Business for your users, messages from blocked senders or domains might still reach users in Google Groups. com or hotmail. Click Advance Config button. Except Thunderbird was never Eudora, there was only the Penelope addon for Thunderbird to make it into what Qualcomm called Eudora OSE because they were in the process of abandoning Eudora. See Gmail's instructions for help. They are generally used to provide additional contact information, legal terms or some other boilerplate information that is relevant to every email. Aug 8, 2025 · Fix imap. 0 Authentication Spectrum web mail is rejecting (BLOCKING!) email from at least 12 sites known to this poster starting April 13 AM. Version info: Sep 24, 2017 · Expected behavior Authentification and Gmail ok Actual behavior Sometimes, only when I'm not using my home WiFi (Phone network or new WiFi network), K9 will try to connect to Gmail and will not (warning icône) because it's blocked by Goo Apr 9, 2024 · Thunderbird continues to block my outgoing emails despite my best efforts. When I try to re-add my Gmail account I get stuck at the Google pop-up. Sep 16, 2023 · Adding gmail account stuck on "checking password" restart, reinstall Thunderbird doesn't help. 1. Mar 10, 2022 · Recently I'm getting A LOT of spam. Oct 19, 2023 · If you were forwarding your Gmail to some other account, then why were you asking about how to use Gmail in Thunderbird in your original post? And why do the screenshots show asking for authorization for Gmail? Please check your connection, disable any ad blockers, or try using a different browser. Open an email you want to block 2. This will set up the E-mail account in Thunderbird. I checked all the online advice and tried all suggestions, but nothing is resolving the problem. If you'd like to add additional email accounts with IMAP1 access, please see the Download Gmail messages using Email Client – Instead of web browser access of Gmail, you can configure an Email client to download Gmail messages. com” through Yahoo's SMTP server. Explore the pro solutions behind Thunderbird Gmail authentication failure. Tengo habilitado el permiso para Thunderbird en la cuenta directa de gmail. Did Gmail recently change something to prevent Thunderbird access? Dec 28, 2023 · For example, you cannot send a mail from “joe@gmail. I can see them on my other computers, just not my desktop - where I archive my emails. Mar 3, 2022 · Actually, changing some Thunderbird settings did solve the problem. 3 (32bits), je peux envoyer des mails vers d'autres adresse mais cela ne fonctionne pas pour gmail, je ne trouve pas la solution à mon problème. Sep 21, 2020 · Windows 7. Is there an easier way? 2) May 22, 2020 · Thunderbird has worked exceptionally well for many, many years on my laptop running Windows 8. com ("connection refused" message). Apr 6, 2016 · However, when it comes to "sending" email with Thunderbird, I can't do it without that obnoxious full-screen popup taking over the screen and telling me to sign in with Gmail, that it's more "convenient" to do so. You can use Thunderbird to enjoy the services of various email services like Outlook, Gmail, and Yahoo. On the other hand, Email Protection provides protection in your web browser. Feb 2, 2025 · Help Center Community Gmail ©2025 Google Privacy Policy Terms of Service Community Policy Community Overview Program Policies Enable Dark Mode Jun 8, 2022 · Help Center Community Gmail ©2025 Google Privacy Policy Terms of Service Community Policy Community Overview Program Policies Enable Dark Mode Send feedback about Thunderbird is a free email application that’s easy to set up and customize - and it’s loaded with great features! Mar 5, 2025 · Struggling with Gmail SMTP settings? Get the latest 2025 setup guide to send emails like a pro—fast, easy & hassle-free! Click to unlock the secrets! Mar 5, 2025 · Images in Emails: Is Blocking Required? Many mailbox providers block images by default, but notable exceptions include Gmail and Apple Mail. Change SMTP ports SMTP (Simple Mail Transfer Protocol) is a TCP/IP We would like to show you a description here but the site won’t allow us. 7. Nov 20, 2024 · I'm also having this issue on Android, which started occurring some time in the past few days. This will also delete the sender’s eMail immediately (almost like call blocker on your phone). It detects spam emails only. net, and messages to gmail addresses are no longer blocked. Sometimes receiving spam emails can be annoying and uncomfortable, but with how to block email addresses in Thunderbird, you can take control and avoid receiving unwanted messages. Aug 27, 2025 · "Signatures" are blocks of text that are automatically appended to every message that you send (including both new messages and replies to incoming messages). Previously, I was using my Gmail account in K-9 / Thunderbird with no issue using OAuth 2 as the authentication method. Nov 4, 2021 · If your network and firewall aren’t blocking email ports – SMTP (25), POP3 (110 and 995), and IMAP (143 and 993) – it’s likely your VPN restricting your ability to send emails via Outlook, Thunderbird, Apple Mail, etc. Stop Spam Before It Reaches Your Inbox MailWasher is the ultimate solution for keeping your inbox clean and spam-free. Read on to find out how to May 12, 2019 · This morning, when I took these shots, I did not have a certificate problem with my Comcast account or my Gmail pop account (unlike the GMail imap account), or the Yahoo "plus" account server (see note 1). Jul 9, 2024 · Blocking emails on Gmail: 1. 1 Pro. Move from Thunderbird to Outlook If you have decided to move from Thunderbird to Outlook, then converting all current Thunderbird data to Outlook is the priority. Jul 18, 2018 · The first thing I did though the order may not be important just the settings. Currently using Thunderbird 68. This will automatically download the restricted files shared from the mentioned email address. Discover how to prevent your messages from being marked as spam and handle IP blacklisting by organizations like Spamhaus. Please check your connection, disable any ad blockers, or try using a different browser. 8. I can never proceed to the next step. Is there a setting I need to change to get this to stop? Lisa If you are using Microsoft Outlook or Mozilla Thunderbird you can easily add the senders of the spam messages to the Spammers list. if I use my regular internet my mail comes into Thunderbird without issue. The reason for this is simple – security. Jun 30, 2020 · Thunderbird was working fine for a number of years, and then out of the blue I get this error message when I try to send e-mail: The Mail Server responded 554 5. May 21, 2019 · This help content & informationGeneral Help Center experienceSearch Gmail SMTP not working? Don’t panic — follow this quick and effective guide to fix common SMTP issues and get your emails sending smoothly in just minutes! Mar 3, 2022 · Actually, changing some Thunderbird settings did solve the problem. Feb 3, 2022 · The following guide can help you access Gmail with certain settings. Is there a setting I need to change to get this to stop? Lisa Dec 18, 2023 · Some Windows and Mac users are encountering the "Configuration could not be verified" error when trying to connect their email account with Thunderbird. Is there any way to configure Thunderbird to remove email from Gmail "All Mail" when received emails are moved from the Inbox to Thunderbird Local Folders, either manually or when using Message Filters? Due to my ISP discontinuing providing email services I am using my Gmail account a LOT more. Oct 23, 2025 · To configure Thunderbird to work with Gmail, first ensure IMAP is enabled on your Gmail account (the default for new Gmail accounts). Jun 7, 2022 · Thunderbird no puede acceder a gmail, pide que reingrese la contraseña y me devuelve un mensaje que la reingrese y esta correcta. Please can anyone help with this Thnx Here's something you might want to think about next time you check your email: chances are, at least some of your messages are being tracked. The last mail received was May 17. Whether you need to block a domain address from sending junk mail or wish to block emails from a specific person, Mozilla Thunderbird allows you to create email rules to properly handle the email. We can see these are not being created by an Admin and the users are claiming they are not doing it themselves. If there is a simple way to remove the new Outlook, and return to the older version where my Nov 3, 2022 · Running Windows 11, Thunderbird version 91. Jul 6, 2017 · Forwarding e-mails to Gmail or Hotmail via Thunderbird - which is best, Gmail or Hotmail? Can not send email with my WiFi but can send with Ethernet cable. Gmail acknowledges acess however. I have my email linked to my Gmail so I can see my Thunderbird emails on my cell phone. Click 3 vertical dots 3. 6. Sep 12, 2014 · Thunderbird and Google SMTP timeouts 12 September 2014 Debugging e-mail sending issues only to learn my VPN blocked outgoing traffic. Jan 1, 2024 · I can send to Gmail and Orange. I click "Allow" and now Thunderbird says. Security Scam Mar 20, 2025 · Block email addresses in Thunderbird: filter out unwanted messages, and keep spammers out by blocking email addresses and domains with Clean Email. Sep 8, 2025 · Solution 5. Sep 18, 2019 · Thunderbird is refused access to my gmail when I use any other internet connection than my own I have done nothing yet. For other mailboxes, like Outlook or Thunderbird, things are not as straightforward. Sep 26, 2023 · I have apache2 server for web deverlopment, and there was an answer in here suggested that it might block Thunderbird from receive Google Token. This problem can be frustrating and adversely affect the overall productivity. Sep 26, 2024 · I read a post here only a few minutes ago where the person stated they were a long time user, having used Thunderbird since it was Eudora. 2 (64 bit), NordVPN Prior to installing NordVPN all the gmail accounts worked fine. Dec 18, 2023 · Some Windows and Mac users are encountering the "Configuration could not be verified" error when trying to connect their email account with Thunderbird. Many ISPs and public Internet access places block mail ports for security reasons. Now it opens the sign-in window and requests the account mail. What can I do? Thank you! Sep 2, 2025 · With this, the issue of Thunderbird block remote content will be resolved. Aug 10, 2023 · Your firewall or antivirus software could block Thunderbird’s access to incoming emails. It provides users with a seamless experience for managing their emails, contacts, calendars, and more. com Port 993 SSL/TLS Authentication method: Normal Password I already turned of my firewall and antivirus and i have checked if the ports are blocked on my router and they are not blocked. IMAP is preferred for accessing Gmail as it allows users to synchronize their emails across multiple devices, meaning that 🔐 Authentication Issues When Connecting an Account If you’re experiencing problems adding an email account to Mailbird for Mac, and receive a Failed Authentication error, don’t worry. Oct 5, 2025 · Thunderbird doesn't currently support Gmail Inbox Categories. While this desktop-based email client is free of cost, it’s not free from errors that you may encounter from time to time as you continue using it. So I disable the apache2 but still nothing change. TL;DR: My VPN 's IP address has been blacklisted by Google, which has prevented Thunderbird from sending e-mails. Other gmail accounts work fine, but one of them, pops up this form in a new browser window, every few week Facing issues while adding Gmail to Thunderbird? Don't worry! Click here to discover 2 easy ways to import Gmail to Thunderbird and access all your emails. Since installing the vpn I get an email message from Google, for each of my gmail accounts, saying my account has been locked or blocked due to suspicious activity. I suspect Google revised their filter May 9, 2021 · Outgoing smtp. Spectrum Tech Support has been acknowledging this problem since April 15 to this After some investigation, we find a block for the user, blocking something like gmail.