Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

unable to connect to server, authentication failed

  • 4 replies
  • 0 have this problem
  • 11 views
  • Paskiausią atsakymą parašė christ1

more options

I'm using Thunderbird already for a long time. Shortly after Google introduced the two step authentication I ran into problems with my gmail account in Thunderbird. (Not able to connect to server, authentication failed) I tried to fix by applying all tips that I could find, removed Avast securuty, reinstalled Thunderbird, checked for updates, checked Oauth 2.0 settings etc. Finally I have chosed another mail client for the gmail account that was causing problems and continued to use Thunderbird for the remaining accounts. Among these accounts is also my wife's gmail account. Now I'm faced with the same problem on that gmail account. Now I even tried to remove the profiles folder, de-installed Thunderbird, rebooted, downloaded and installed the latest version of Thunderbird. Then I tried to create an account for the gmail with no success. There are two different error messages (authentication failed or wrong password). Are there still things I can do to solve this problem?

I'm using Thunderbird already for a long time. Shortly after Google introduced the two step authentication I ran into problems with my gmail account in Thunderbird. (Not able to connect to server, authentication failed) I tried to fix by applying all tips that I could find, removed Avast securuty, reinstalled Thunderbird, checked for updates, checked Oauth 2.0 settings etc. Finally I have chosed another mail client for the gmail account that was causing problems and continued to use Thunderbird for the remaining accounts. Among these accounts is also my wife's gmail account. Now I'm faced with the same problem on that gmail account. Now I even tried to remove the profiles folder, de-installed Thunderbird, rebooted, downloaded and installed the latest version of Thunderbird. Then I tried to create an account for the gmail with no success. There are two different error messages (authentication failed or wrong password). Are there still things I can do to solve this problem?

All Replies (4)

more options

Please post your Troubleshooting Information. At the top right of the Thunderbird window, click the menu button ≡, then select Help > Troubleshooting Information. Press the "Copy text to clipboard button" and paste the information into your reply.

There are two different error messages (authentication failed or wrong password).

With OAuth2 authentication you'll have to use the main account password, not an app password.

Modified by christ1

more options

Toepassingsbasics

   Naam: Thunderbird
   Versie: 102.8.0
   Build-ID: 20230214184313
   Distributie-ID:
   Updatekanaal: release
   Useragent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.8.0
   OS: Windows_NT 10.0 19045
   OS-thema:
   Launcher-proces: Ingeschakeld
   Multiprocess-vensters: 0/0
   Fission Windows: 0/0
             Standaard ingeschakeld
   Externe processen: 2
   Bedrijfsbeleidsregels: Inactief
   Google-locatieservicesleutel: Ontbreekt
   Google Safe Browsing-sleutel: Ontbreekt
   Mozilla-locatieservicesleutel: Ontbreekt
   Veilige modus: true
   Geheugengrootte (RAM): 7,9 GB
   Beschikbare schijfruimte: 21,1 GB
 E-mail- en nieuwsaccounts
   account1:
     INCOMING: account1, , (pop3) pop.caiway.nl:995, SSL, passwordCleartext
     OUTGOING: , smtp.caiway.nl:465, SSL, passwordCleartext, true
   account2:
     INCOMING: account2, , (none) Local Folders, 0, passwordCleartext
   account3:
     INCOMING: account3, , (imap) imap.gmail.com:993, SSL, OAuth2
     OUTGOING: , smtp.gmail.com:465, SSL, OAuth2, true
 Bibliotheken
     Bibliotheek
     Status
     Verwachte minimale versie
     Gebruikte versie
     Pad
     RNP (OpenPGP)
     OK
     0.16.2
     0.16.2+git20220922.298ad98b.MZLA
     C:\Program Files\Mozilla Thunderbird\rnp.dll
     Pop-upwaarschuwingen ondersteund:
     Waarschuwingen bij uitnodiging ondersteund:
     Max. waarschuwingen per gebeurtenis:
     Bijlage ondersteund:
     Max. categorieën:
     Privacystatus ondersteund:
     Prioriteit ondersteund: true
     Gebeurtenis ondersteund:
     Taak ondersteund:
     Lokale tijd ondersteund:
     UTC/GMT ondersteund:
     Automatische planning ondersteund:
 Crashrapporten van de afgelopen 3 dagen
 Externe processen
   Type: Aantal
     Webinhoud: 1 / 8
     Geïsoleerde webinhoud: 1
 Add-ons
     Naam
     Type
     Versie
     Ingeschakeld
     ID
       Bing
       extension
       1.0
       true
       bing@search.mozilla.org
       bol.com
       extension
       1.0
       true
       bolcom@search.mozilla.org
       DuckDuckGo
       extension
       1.0
       true
       ddg@search.mozilla.org
       Google
       extension
       1.0
       true
       google@search.mozilla.org
       Marktplaats.nl
       extension
       1.0
       true
       marktplaats@search.mozilla.org
       Wikipedia (nl)
       extension
       1.0
       true
       wikipedia@search.mozilla.org
       British English Dictionary (Darmeth)
       dictionary
       3.0.6
       false
       {d187b435-812e-4813-a93e-edccc4118f9d}
       Woordenboek Nederlands
       dictionary
       4.20.19
       false
       nl-NL@dictionaries.addons.mozilla.org
 Beveiligingssoftware
   Type: Naam
     Antivirus: Microsoft Defender Antivirus
     Antispyware:
     Firewall: Windows Firewall
 Grafisch
     Functies
     Samenstellen: WebRender (Software)
     Asynchroon pannen/zoomen: wielinvoer ingeschakeld; slepen via scrollbalk ingeschakeld; toetsenbord ingeschakeld; automatisch scrollen ingeschakeld; soepele knijp-zoom ingeschakeld
     WSI-info van WebGL 1-stuurprogramma: -
     Renderer van WebGL 1-stuurprogramma: WebGL is currently disabled.
     Versie van WebGL 1-stuurprogramma: -
     Extensies van WebGL 1-stuurprogramma: -
     WebGL 1-extensies: -
     WSI-info van WebGL 2-stuurprogramma: -
     Renderer van  WebGL 2-stuurprogramma: WebGL is currently disabled.
     Versie van WebGL 2-stuurprogramma: -
     Extensies van WebGL 2-stuurprogramma: -
     WebGL 2-extensies: -
     Doelframerate: 60
     DirectWrite: true (10.0.19041.1566)
     GPU #1
     Actief: Ja
     Beschrijving: NVIDIA GeForce GTX 1050
     Leverancier-ID: 0x10de
     Apparaat-ID: 0x1c81
     Stuurprogrammaversie: 31.0.15.2656
     Datum van stuurprogramma: 10-31-2022
     Stuurprogramma’s: C:\WINDOWS\System32\DriverStore\FileRepository\nvhdc.inf_amd64_a96d179b15e4aed9\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvhdc.inf_amd64_a96d179b15e4aed9\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvhdc.inf_amd64_a96d179b15e4aed9\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvhdc.inf_amd64_a96d179b15e4aed9\nvldumdx.dll C:\WINDOWS\System32\DriverStore\FileRepository\nvhdc.inf_amd64_a96d179b15e4aed9\nvldumd.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvhdc.inf_amd64_a96d179b15e4aed9\nvldumd.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvhdc.inf_amd64_a96d179b15e4aed9\nvldumd.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvhdc.inf_amd64_a96d179b15e4aed9\nvldumd.dll
     Subsysteem-ID: 00000000
     RAM: 2048
     GPU #2
     Actief: Nee
     RAM: 0
     Diagnostische gegevens
     AzureCanvasBackend: skia
     AzureContentBackend: skia
     AzureFallbackCanvasBackend: skia
     CMSOutputProfile: AAAMSExpbm8CEAAAbW50clJHQiBYWVogB84AAgAJAAYAMQAAYWNzcE1TRlQAAAAASUVDIHNSR0IAAAAAAAAAAAAAAAAAAPbWAAEAAAAA0y1IUCAgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAARY3BydAAAAVAAAAAzZGVzYwAAAYQAAABsd3RwdAAAAfAAAAAUYmtwdAAAAgQAAAAUclhZWgAAAhgAAAAUZ1hZWgAAAiwAAAAUYlhZWgAAAkAAAAAUZG1uZAAAAlQAAABwZG1kZAAAAsQAAACIdnVlZAAAA0wAAACGdmlldwAAA9QAAAAkbHVtaQAAA/gAAAAUbWVhcwAABAwAAAAkdGVjaAAABDAAAAAMclRSQwAABDwAAAgMZ1RSQwAABDwAAAgMYlRSQwAABDwAAAgMdGV4dAAAAABDb3B5cmlnaHQgKGMpIDE5OTggSGV3bGV0dC1QYWNrYXJkIENvbXBhbnkAAGRlc2MAAAAAAAAAEnNSR0IgSUVDNjE5NjYtMi4xAAAAAAAAAAAAAAASc1JHQiBJRUM2MTk2Ni0yLjEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAFhZWiAAAAAAAADzUQABAAAAARbMWFlaIAAAAAAAAAAAAAAAAAAAAABYWVogAAAAAAAAb6IAADj1AAADkFhZWiAAAAAAAABimQAAt4UAABjaWFlaIAAAAAAAACSgAAAPhAAAts9kZXNjAAAAAAAAABZJRUMgaHR0cDovL3d3dy5pZWMuY2gAAAAAAAAAAAAAABZJRUMgaHR0cDovL3d3dy5pZWMuY2gAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAZGVzYwAAAAAAAAAuSUVDIDYxOTY2LTIuMSBEZWZhdWx0IFJHQiBjb2xvdXIgc3BhY2UgLSBzUkdCAAAAAAAAAAAAAAAuSUVDIDYxOTY2LTIuMSBEZWZhdWx0IFJHQiBjb2xvdXIgc3BhY2UgLSBzUkdCAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGRlc2MAAAAAAAAALFJlZmVyZW5jZSBWaWV3aW5nIENvbmRpdGlvbiBpbiBJRUM2MTk2Ni0yLjEAAAAAAAAAAAAAACxSZWZlcmVuY2UgVmlld2luZyBDb25kaXRpb24gaW4gSUVDNjE5NjYtMi4xAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB2aWV3AAAAAAATpP4AFF8uABDPFAAD7cwABBMLAANcngAAAAFYWVogAAAAAABMCVYAUAAAAFcf521lYXMAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAKPAAAAAnNpZyAAAAAAQ1JUIGN1cnYAAAAAAAAEAAAAAAUACgAPABQAGQAeACMAKAAtADIANwA7AEAARQBKAE8AVABZAF4AYwBoAG0AcgB3AHwAgQCGAIsAkACVAJoAnwCkAKkArgCyALcAvADBAMYAywDQANUA2wDgAOUA6wDwAPYA+wEBAQcBDQETARkBHwElASsBMgE4AT4BRQFMAVIBWQFgAWcBbgF1AXwBgwGLAZIBmgGhAakBsQG5AcEByQHRAdkB4QHpAfIB+gIDAgwCFAIdAiYCLwI4AkECSwJUAl0CZwJxAnoChAKOApgCogKsArYCwQLLAtUC4ALrAvUDAAMLAxYDIQMtAzgDQwNPA1oDZgNyA34DigOWA6IDrgO6A8cD0wPgA+wD+QQGBBMEIAQtBDsESARVBGMEcQR+BIwEmgSoBLYExATTBOEE8AT+BQ0FHAUrBToFSQVYBWcFdwWGBZYFpgW1BcUF1QXlBfYGBgYWBicGNwZIBlkGagZ7BowGnQavBsAG0QbjBvUHBwcZBysHPQdPB2EHdAeGB5kHrAe/B9IH5Qf4CAsIHwgyCEYIWghuCIIIlgiqCL4I0gjnCPsJEAklCToJTwlkCXkJjwmkCboJzwnlCfsKEQonCj0KVApqCoEKmAquCsUK3ArzCwsLIgs5C1ELaQuAC5gLsAvIC+EL+QwSDCoMQwxcDHUMjgynDMAM2QzzDQ0NJg1ADVoNdA2ODakNww3eDfgOEw4uDkkOZA5/DpsOtg7SDu4PCQ8lD0EPXg96D5YPsw/PD+wQCRAmEEMQYRB+EJsQuRDXEPURExExEU8RbRGMEaoRyRHoEgcSJhJFEmQShBKjEsMS4xMDEyMTQxNjE4MTpBPFE+UUBhQnFEkUahSLFK0UzhTwFRIVNBVWFXgVmxW9FeAWAxYmFkkWbBaPFrIW1hb6Fx0XQRdlF4kXrhfSF/cYGxhAGGUYihivGNUY+hkgGUUZaxmRGbcZ3RoEGioaURp3Gp4axRrsGxQbOxtjG4obshvaHAIcKhxSHHscoxzMHPUdHh1HHXAdmR3DHeweFh5AHmoelB6+HukfEx8+H2kflB+/H+ogFSBBIGwgmCDEIPAhHCFIIXUhoSHOIfsiJyJVIoIiryLdIwojOCNmI5QjwiPwJB8kTSR8JKsk2iUJJTglaCWXJccl9yYnJlcmhya3JugnGCdJJ3onqyfcKA0oPyhxKKIo1CkGKTgpaymdKdAqAio1KmgqmyrPKwIrNitpK50r0SwFLDksbiyiLNctDC1BLXYtqy3hLhYuTC6CLrcu7i8kL1ovkS/HL/4wNTBsMKQw2zESMUoxgjG6MfIyKjJjMpsy1DMNM0YzfzO4M/E0KzRlNJ402DUTNU01hzXCNf02NzZyNq426TckN2A3nDfXOBQ4UDiMOMg5BTlCOX85vDn5OjY6dDqyOu87LTtrO6o76DwnPGU8pDzjPSI9YT2hPeA+ID5gPqA+4D8hP2E/oj/iQCNAZECmQOdBKUFqQaxB7kIwQnJCtUL3QzpDfUPARANER0SKRM5FEkVVRZpF3kYiRmdGq0bwRzVHe0fASAVIS0iRSNdJHUljSalJ8Eo3Sn1KxEsMS1NLmkviTCpMcky6TQJNSk2TTdxOJU5uTrdPAE9JT5NP3VAnUHFQu1EGUVBRm1HmUjFSfFLHUxNTX1OqU/ZUQlSPVNtVKFV1VcJWD1ZcVqlW91dEV5JX4FgvWH1Yy1kaWWlZuFoHWlZaplr1W0VblVvlXDVchlzWXSddeF3JXhpebF69Xw9fYV+zYAVgV2CqYPxhT2GiYfViSWKcYvBjQ2OXY+tkQGSUZOllPWWSZedmPWaSZuhnPWeTZ+loP2iWaOxpQ2maafFqSGqfavdrT2una/9sV2yvbQhtYG25bhJua27Ebx5veG/RcCtwhnDgcTpxlXHwcktypnMBc11zuHQUdHB0zHUodYV14XY+dpt2+HdWd7N4EXhueMx5KnmJeed6RnqlewR7Y3vCfCF8gXzhfUF9oX4BfmJ+wn8jf4R/5YBHgKiBCoFrgc2CMIKSgvSDV4O6hB2EgITjhUeFq4YOhnKG14c7h5+IBIhpiM6JM4mZif6KZIrKizCLlov8jGOMyo0xjZiN/45mjs6PNo+ekAaQbpDWkT+RqJIRknqS45NNk7aUIJSKlPSVX5XJljSWn5cKl3WX4JhMmLiZJJmQmfyaaJrVm0Kbr5wcnImc951kndKeQJ6unx2fi5/6oGmg2KFHobaiJqKWowajdqPmpFakx6U4pammGqaLpv2nbqfgqFKoxKk3qamqHKqPqwKrdavprFys0K1ErbiuLa6hrxavi7AAsHWw6rFgsdayS7LCszizrrQltJy1E7WKtgG2ebbwt2i34LhZuNG5SrnCuju6tbsuu6e8IbybvRW9j74KvoS+/796v/XAcMDswWfB48JfwtvDWMPUxFHEzsVLxcjGRsbDx0HHv8g9yLzJOsm5yjjKt8s2y7bMNcy1zTXNtc42zrbPN8+40DnQutE80b7SP9LB00TTxtRJ1MvVTtXR1lXW2Ndc1+DYZNjo2WzZ8dp22vvbgNwF3IrdEN2W3hzeot8p36/gNuC94UThzOJT4tvjY+Pr5HPk/OWE5g3mlucf56noMui86Ubp0Opb6uXrcOv77IbtEe2c7ijutO9A78zwWPDl8XLx//KM8xnzp/Q09ML1UPXe9m32+/eK+Bn4qPk4+cf6V/rn+3f8B/yY/Sn9uv5L/tz/bf//
     Display0: 3840x2160@60Hz scales:1.000000|1.750000
     DisplayCount: 1
     HardwareStretching: both=0 window-only=0 full-screen-only=1 none=0 error=0
     ClearType-parameters: Gamma: 1.8 Pixel Structure: RGB ClearType Level: 100 Enhanced Contrast: 50
     Beslissingenlogboek
     HW_COMPOSITING: available by defaultblocked by runtime: Acceleration blocked by safe-mode
     D3D11_COMPOSITING: unavailable by default: Hardware
more options

There are two different error messages (authentication failed or wrong password).

With OAuth2 authentication you'll have to use the main account password, not an app password.

Correct, I have attached a screen capture of the error that occurs most frequently. The password that I use is the password for my google account.

more options

Removing Avast probably was a good idea. And the server settings for the Gmail account look good.

Antivirus: Microsoft Defender Antivirus

Your anti-virus software is now Microsoft Defender, which is a very reasonable choice. However, anti-virus software in general can be problematic in connection with Thunderbird.

These are some generic suggestions to avoid problems with anti-virus software.

Create an exception in your anti-virus software for the Thunderbird profile folder, so that the anti-virus real-time scanner will not scan it. https://support.mozilla.org/en-US/kb/profiles-where-thunderbird-stores-user-data#w_how-to-find-your-profile

Don't let your anti-virus software scan incoming and outgoing messages.

Don't let your anti-virus software scan attachments.

Don't let your anti-virus software intercept your secure connection to the server.

Remove any add-ons your anti-virus software may have installed in Thunderbird.

Keep it working. http://kb.mozillazine.org/Keep_it_working_-_Thunderbird

And last but not least, backup your Thunderbird profile on a regular basis. https://support.mozilla.org/kb/profiles-where-thunderbird-stores-user-data#w_backing-up-a-profile