Exactly what error are you seeing?

I receive the following message:

Login to server imap.googlemail.com with username saklaspaa@gmail.com failed.

and it offers three choices to click on: Retry Enter New Password and Cancel

If I then load my gmail from the web, Google sends the following message:

Someone just used your password to try to sign in to your account from a non-Google app. Google blocked them, but you should check what happened. Review your account activity to make sure no one else has access. Check activity

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.

Application Basics

   Name: Thunderbird
   Version: 68.5.0
   Build ID: 20200210021033

   Update Channel: release
   User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0
   OS: Windows_NT 6.1

   Launcher Process: Enabled
   Multiprocess Windows: 0/0
             Disabled
   Remote Processes: 0
   Enterprise Policies: Inactive
   Google Location Service Key: Missing
   Google Safebrowsing Key: Missing
   Mozilla Location Service Key: Missing
   Safe Mode: false

 Mail and News Accounts
   account1:
     INCOMING: account1, , (none) Local Folders, plain, passwordCleartext

   account4:
     INCOMING: account4, , (pop3) incoming.yahoo.verizon.net:995, SSL, passwordCleartext
     OUTGOING: , outgoing.yahoo.verizon.net:465, SSL, passwordCleartext, true

   account6:
     INCOMING: account6, , (pop3) incoming.yahoo.verizon.net:995, SSL, passwordCleartext
     OUTGOING: , outgoing.yahoo.verizon.net:465, SSL, passwordCleartext, true

   account9:
     INCOMING: account9, , (imap) imap.googlemail.com:993, SSL, passwordCleartext
     OUTGOING: , smtp.googlemail.com:465, SSL, OAuth2, true

 Crash Reports for the Last 3 Days

 Remote Processes

   Type: Count

 Extensions

     Name
     Version
     Enabled
     ID

       Amazon.com
       1.1
       true
       amazondotcom@search.mozilla.org

       Bing
       1.0
       true
       bing@search.mozilla.org

       DuckDuckGo
       1.0
       true
       ddg@search.mozilla.org

       Google
       1.0
       true
       google@search.mozilla.org

       Lightning
       68.5.0
       true
       {e2fda1a4-762b-4020-b5ad-a41df1933103}

       Twitter
       1.0
       true
       twitter@search.mozilla.org

       Wikipedia (en)
       1.0
       true
       wikipedia@search.mozilla.org

       CompactHeader
       3.0.0beta5
       false
       {58D4392A-842E-11DE-B51A-C7B855D89593}

 Security Software

   Type: Name

     Antivirus:
     Antispyware:
     Firewall:

 Graphics

     Features
     Compositing: Basic
     Asynchronous Pan/Zoom: none
     WebGL 1 Driver WSI Info: EGL_VENDOR: Google Inc. (adapter LUID: 0000000000008562)

EGL_VERSION: 1.4 (ANGLE 2.1.0.8a050090f926) EGL_EXTENSIONS: EGL_EXT_create_context_robustness EGL_ANGLE_d3d_share_handle_client_buffer EGL_ANGLE_d3d_texture_client_buffer EGL_ANGLE_surface_d3d_texture_2d_share_handle EGL_ANGLE_query_surface_pointer EGL_ANGLE_window_fixed_size EGL_ANGLE_keyed_mutex EGL_ANGLE_surface_orientation EGL_NV_post_sub_buffer EGL_KHR_create_context EGL_EXT_device_query EGL_KHR_image EGL_KHR_image_base EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_cubemap_image EGL_KHR_gl_renderbuffer_image EGL_KHR_get_all_proc_addresses EGL_KHR_stream EGL_KHR_stream_consumer_gltexture EGL_NV_stream_consumer_gltexture_yuv EGL_ANGLE_flexible_surface_compatibility EGL_ANGLE_stream_producer_d3d_texture EGL_ANGLE_create_context_webgl_compatibility EGL_CHROMIUM_create_context_bind_generates_resource EGL_EXT_pixel_format_float EGL_KHR_surfaceless_context EGL_ANGLE_display_texture_share_group EGL_ANGLE_create_context_client_arrays EGL_ANGLE_program_cache_control EGL_ANGLE_robust_resource_initialization EGL_ANGLE_create_context_extensions_enabled EGL_ANDROID_blob_cache EGL_ANDROID_recordable EGL_EXTENSIONS(nullptr): EGL_EXT_client_extensions EGL_EXT_platform_base EGL_EXT_platform_device EGL_ANGLE_platform_angle EGL_ANGLE_platform_angle_d3d EGL_ANGLE_device_creation EGL_ANGLE_device_creation_d3d11 EGL_ANGLE_experimental_present_path EGL_KHR_client_get_all_proc_addresses EGL_KHR_debug EGL_ANGLE_explicit_context

     WebGL 1 Driver Renderer: Google Inc. -- ANGLE (ATI Radeon 3000 Graphics Direct3D11 vs_4_0 ps_4_0)
     WebGL 1 Driver Version: OpenGL ES 2.0 (ANGLE 2.1.0.8a050090f926)
     WebGL 1 Driver Extensions: GL_ANGLE_client_arrays GL_ANGLE_depth_texture GL_ANGLE_explicit_context GL_ANGLE_explicit_context_gles1 GL_ANGLE_framebuffer_blit GL_ANGLE_framebuffer_multisample GL_ANGLE_instanced_arrays GL_ANGLE_lossy_etc_decode GL_ANGLE_memory_size GL_ANGLE_multi_draw GL_ANGLE_pack_reverse_row_order GL_ANGLE_program_cache_control GL_ANGLE_provoking_vertex GL_ANGLE_request_extension GL_ANGLE_robust_client_memory GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5 GL_ANGLE_texture_usage GL_ANGLE_translated_shader_source GL_CHROMIUM_bind_generates_resource GL_CHROMIUM_bind_uniform_location GL_CHROMIUM_color_buffer_float_rgb GL_CHROMIUM_color_buffer_float_rgba GL_CHROMIUM_copy_compressed_texture GL_CHROMIUM_copy_texture GL_CHROMIUM_sync_query GL_EXT_blend_func_extended GL_EXT_blend_minmax GL_EXT_color_buffer_half_float GL_EXT_debug_marker GL_EXT_discard_framebuffer GL_EXT_disjoint_timer_query GL_EXT_draw_buffers GL_EXT_float_blend GL_EXT_frag_depth GL_EXT_instanced_arrays GL_EXT_map_buffer_range GL_EXT_occlusion_query_boolean GL_EXT_read_format_bgra GL_EXT_robustness GL_EXT_sRGB GL_EXT_shader_texture_lod GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_s3tc_srgb GL_EXT_texture_filter_anisotropic GL_EXT_texture_format_BGRA8888 GL_EXT_texture_rg GL_EXT_texture_storage GL_EXT_unpack_subimage GL_KHR_debug GL_KHR_parallel_shader_compile GL_KHR_robust_buffer_access_behavior GL_NV_EGL_stream_consumer_external GL_NV_fence GL_NV_pack_subimage GL_NV_pixel_buffer_object GL_OES_EGL_image GL_OES_EGL_image_external GL_OES_compressed_ETC1_RGB8_texture GL_OES_depth32 GL_OES_element_index_uint GL_OES_get_program_binary GL_OES_mapbuffer GL_OES_packed_depth_stencil GL_OES_rgb8_rgba8 GL_OES_standard_derivatives GL_OES_surfaceless_context GL_OES_texture_border_clamp GL_OES_texture_float GL_OES_texture_float_linear GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_texture_npot GL_OES_vertex_array_object OES_compressed_EAC_R11_signed_texture OES_compressed_EAC_R11_unsigned_texture OES_compressed_EAC_RG11_signed_texture OES_compressed_EAC_RG11_unsigned_texture OES_compressed_ETC2_RGB8_texture OES_compressed_ETC2_RGBA8_texture OES_compressed_ETC2_punchthroughA_RGBA8_texture OES_compressed_ETC2_punchthroughA_sRGB8_alpha_texture OES_compressed_ETC2_sRGB8_alpha8_texture OES_compressed_ETC2_sRGB8_texture
     WebGL 1 Extensions: ANGLE_instanced_arrays EXT_blend_minmax EXT_color_buffer_half_float EXT_disjoint_timer_query EXT_float_blend EXT_frag_depth EXT_shader_texture_lod EXT_sRGB EXT_texture_filter_anisotropic OES_element_index_uint OES_standard_derivatives OES_texture_float OES_texture_float_linear OES_texture_half_float OES_texture_half_float_linear OES_vertex_array_object WEBGL_color_buffer_float WEBGL_compressed_texture_s3tc WEBGL_compressed_texture_s3tc_srgb WEBGL_debug_renderer_info WEBGL_debug_shaders WEBGL_depth_texture WEBGL_draw_buffers WEBGL_lose_context
     WebGL 2 Driver WSI Info: -
     WebGL 2 Driver Renderer: WebGL creation failed:

• tryANGLE
• Exhausted GL driver options.

     WebGL 2 Driver Version: -
     WebGL 2 Driver Extensions: -
     WebGL 2 Extensions: -
     Uses Tiling (Content): true
     Off Main Thread Painting Enabled: true
     Off Main Thread Painting Worker Count: 2
     Target Frame Rate: 60
     DirectWrite: true (6.2.9200.22807)

     GPU #1
     Active: Yes
     Description: ATI Radeon 3000 Graphics
     Vendor ID: 0x1002
     Device ID: 0x9616
     Driver Version: 8.850.0.0
     Driver Date: 4-19-2011
     Drivers: aticfx64 aticfx64 aticfx32 aticfx32 atiumd64 atidxx64 atiumdag atidxx32 atiumdva atiumd6a atitmm64
     Subsys ID: 00000000
     RAM: 512

   GPU #2

     Diagnostics
     AzureCanvasBackend: skia
     AzureContentBackend: skia
     AzureFallbackCanvasBackend: cairo
     ClearType Parameters: Gamma: 1.8 Pixel Structure: RGB ClearType Level: 100 Enhanced Contrast: 50

     Decision Log
     HW_COMPOSITING: disabled by user: Disabled by pref
     D3D11_COMPOSITING: unavailable by default: Hardware compositing is disabled
     DIRECT2D: unavailable by default: Direct2D requires Direct3D 11 compositing
     D3D11_HW_ANGLE: unavailable by default: D3D11 compositing is disableddisabled by env: D3D11 compositing is disabled
     GPU_PROCESS: unavailable by default: Multi-process mode is not enabled
     WEBRENDER: opt-in by default: WebRender is an opt-in featureunavailable-no-angle by runtime: ANGLE is disabled
     WEBRENDER_QUALIFIED: blacklisted by env: No qualified hardware

   Crash Guard Disabled Features

   Workarounds

   Failure Log

 Media

     Audio Backend: wasapi
     Max Channels: 2
     Preferred Sample Rate: 48000

     Output Devices

       Name
       Group
       Vendor
       State
       Preferred
       Format
       Channels
       Rate
       Latency

       Speakers (Realtek High Definition Audio)
       HDAUDIO\FUNC_01&VEN_10EC&DEV_0887&SUBSYS_1458A002&REV_1003\4&1454c4ac&0&0001
       Enabled
       All
       default: F32LE, support: S16LE F32LE
       2
       default: 48000, support: 48000 - 48000
       144 - 480

     Input Devices

       Name
       Group
       Vendor
       State
       Preferred
       Format
       Channels
       Rate
       Latency

       Stereo Mix (Realtek High Definition Audio)
       HDAUDIO\FUNC_01&VEN_10EC&DEV_0887&SUBSYS_1458A002&REV_1003\4&1454c4ac&0&0001
       Disabled
       None
       default: F32LE, support: S16LE F32LE
       2
       default: 44100, support: 44100 - 44100
       0 - 0

       Rear Green In (Realtek High Definition Audio)
       HDAUDIO\FUNC_01&VEN_10EC&DEV_0887&SUBSYS_1458A002&REV_1003\4&1454c4ac&0&0001
       Disabled
       None
       default: F32LE, support: S16LE F32LE
       0
       default: 0, support: 0 - 0
       0 - 0

       Rear Blue In (Realtek High Definition Audio)

In the previous reply, I received an error message that the post was too large to be accepted, but only a wee bit too large. I cut the last few lines to get the post small enough to be accepted. The lines I cut are below:

HDAUDIO\FUNC_01&VEN_10EC&DEV_0887&SUBSYS_1458A002&REV_1003\4&1454c4ac&0&0001

       Disabled
       None
       default: F32LE, support: S16LE F32LE
       0
       default: 0, suppor

Also note that I have three email profiles on TB. Two are verizon.net and one is the problematic gmail.com The verizon-yahoo ones are operating perfectly.

account9: INCOMING: account9, , (imap) imap.googlemail.com:993, SSL, passwordCleartext

Change the Authentication method for the incoming server (IMAP) to OAuth2.

christ1,

I changed the authentication method to OAuth2. I closed TB. I reloaded TB and even before I was asked to input a password I received the following error message:

Authentication failure while connecting to server imap.googlemail.com

Delete the gmail passwords and oauth:// entries from Tools/Options/Security/Passwords/Saved Passwords, restart TB, and enter the new password in the OAuth2 browser window when prompted.

christs1,

All is working fine.

Thank you, take care and be safe,

Jim