Thunderbird Community Forum

I have been using Thunderbird for ages now with no problem, but I suddenly realised that no recent emails were appearing from my Gmail account. I have tried everything suggested on line to resolve the problem, including uninstalling and reinstalling Thunderbird, and deleting and re-entering my acccount details but neither the IMAP or SMTP servers will connect to Gmail. I have reset all of the server settings on Thunderbird, and have checked that Gmail is IMAP compliant (which, apparently, is is now automatically). I have spent hours trying to sort this out and am just at the point of abandoning Thunderbird completely, but I am loathe to do so if there is a solution. The latest error message i have received is "Unable to log in at server. Probably wrong configuration, username or password" but I don't know what else I can check or change.

For 2 years have been trying to get Thunderbird to access my mail from The Messaging Co. My old Win 10 laptop has no problem. My new win 11 laptop won't. I have configured the servers over and over but everytime I try to access Thunderbird I get "could not connect to mail server: the connection was refused". Who is refusing the connection? And why? I have re-downloaded Thunderbird several times but the problem persists. I am using Firefox. And using the in and out servers as per my win 10 laptop.

Ik krijg geen verbinding meer met mozilla thunderbird email. Google is mijn provider. Google vermeldt: server kan het verzoek niet verwerken omdat dit niet de juiste opmaak heeft. Ik heb wel mijn wachtwoord in Google verandert door Odido probleem. Ik vermoed dat dit het probleem kan zijn. Mijn vraag is of u dit op afstand kan bekijken

Hi I keep getting the message "Unable to connect to your IMAP server". I have reduced the number of 'server connections to cache' from the default 5 down to 1. Thanks

I downloaded TB Supernova ver. 115.18.0 (32 bit) to my wife's old Gateway computer. (Win 7 Ultimate Svc Pk 1 32bit). However, after manually configuring the server settings, I get the above error message. Additional information: This old Gateway had Thunderbird on it at one time - don't know the old version. It worked, then quit after an upgrade, and I haven't been able to get it to work since. The ISP provider still has our original password, and I can log into their email server and see 81K worth of emails. I have a Toshiba laptop, also Win 7 64bit, and TB SuperNova is installed and working on it. I used the server settings from my Toshiba to manually configure TB on the Gateway... Any ideas as to what to try next? Peter

I am using internet server provider www. namespro.ca server settings for my email account set up with Thunderbird mail and the email account will not set up properly. I currently have (1) domain name "realestateX.com with www. namespro.ca and I am attempting to set the email accounts using Thunderbird Mail on a desktop CPU. The email accounts will NOT set up with ThunderBird Mail with this domain name, 'realestatex.com.' On the other hand, the same domain name email account were succcesfully set up on OUTLOOK using the same www. namespro.ca server settings with success, they work properly in and out

Back to the Desktop CPU and my Thunderbird Mail program; I have another email account set in with another domain email account realestatex.net with a completely different internet server provider www. webnames.ca and that email works fine in and out and the set up without an issue

Back to namespro.ca their server settings work fine with MS 365 OUTLOOK email set up on my DELL laptop. However the server setting from namespro.ca will not work on the desktop and laptop, The laptop set up is using a MOZILLA Thunderbird Account Hub and stated their is an "authentication error because of a policy violation relating to the refused connection from the IP" . Would namepro.ca IP connection refusing my thunderbird mail account to syne with namespro.ca? any insight would be helpful, appreciate your time