some recipients receive mail others do not, webmail works for everyone
When we send emails from Thunderbird, recipients at yahoo.ca, google.com, and many other addresses do not receive the message, while some others, notably any at our same domain reptilia.org do. This is not the when we use the provider's webmail services. In those cases every email is received.
Application Basics
Name: Thunderbird Version: 38.7.0 User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.7.0 Profile Folder: Show Folder
(Local drive) Application Build ID: 20160310150025 Enabled Plugins: about:plugins Build Configuration: about:buildconfig Memory Use: about:memory
Mail and News Accounts account2: INCOMING: account2, , (none) Local Folders, plain, passwordCleartext
account3: INCOMING: account3, , (imap) OUR_MAIL_SERVER.com:993, SSL, passwordCleartext OUTGOING:OUR_MAIL_SERVER.com:465, SSL, passwordCleartext, true
Crash Reports http://crash-stats.mozilla.com/report/index/bp-372bafdb-b8ae-42ff-abc9-e65912160314 (14/03/2016) http://crash-stats.mozilla.com/report/index/bp-7f8d68d1-dbd3-454d-95b6-3b68b2150912 (12/09/2015)
Extensions Lightning, 4.0.7, true, {e2fda1a4-762b-4020-b5ad-a41df1933103}
Important Modified Preferences
Name: Value
browser.cache.disk.capacity: 358400 browser.cache.disk.smart_size_cached_value: 358400 browser.cache.disk.smart_size.first_run: false browser.cache.disk.smart_size.use_old_max: false dom.max_chrome_script_run_time: 0 extensions.lastAppVersion: 38.7.0 font.internaluseonly.changed: false font.name.monospace.el: Consolas font.name.monospace.tr: Consolas font.name.monospace.x-baltic: Consolas font.name.monospace.x-central-euro: Consolas font.name.monospace.x-cyrillic: Consolas font.name.monospace.x-unicode: Consolas font.name.monospace.x-western: Consolas font.name.sans-serif.el: Calibri font.name.sans-serif.tr: Calibri font.name.sans-serif.x-baltic: Calibri font.name.sans-serif.x-central-euro: Calibri font.name.sans-serif.x-cyrillic: Calibri font.name.sans-serif.x-unicode: Calibri font.name.sans-serif.x-western: Calibri font.name.serif.el: Cambria font.name.serif.tr: Cambria font.name.serif.x-baltic: Cambria font.name.serif.x-central-euro: Cambria font.name.serif.x-cyrillic: Cambria font.name.serif.x-unicode: Cambria font.name.serif.x-western: Cambria font.size.fixed.el: 14 font.size.fixed.tr: 14 font.size.fixed.x-baltic: 14 font.size.fixed.x-central-euro: 14 font.size.fixed.x-cyrillic: 14 font.size.fixed.x-unicode: 14 font.size.fixed.x-western: 14 font.size.variable.el: 17 font.size.variable.tr: 17 font.size.variable.x-baltic: 17 font.size.variable.x-central-euro: 17 font.size.variable.x-cyrillic: 17 font.size.variable.x-unicode: 17 font.size.variable.x-western: 17 mail.openMessageBehavior.version: 1 mail.winsearch.enable: true mail.winsearch.firstRunDone: true mail.winsearch.global_reindex_time: 1362791008 mailnews.database.global.datastore.id: b7af5a96-5bdb-4f27-ae58-7deb89d87a7 mailnews.database.global.views.conversation.columns: {"threadCol":{"visible":true,"ordinal":"1"},"flaggedCol":{"visible":true,"ordinal":"3"},"attachmentCol":{"visible":false… network.cookie.prefsMigrated: true network.predictor.cleaned-up: true places.database.lastMaintenance: 1458520546 places.history.expiration.transient_current_max_pages: 77132 plugin.importedState: true print.printer_Photo_Booth_Canon_M6320_Printer.print_bgcolor: false print.printer_Photo_Booth_Canon_M6320_Printer.print_bgimages: false print.printer_Photo_Booth_Canon_M6320_Printer.print_colorspace: print.printer_Photo_Booth_Canon_M6320_Printer.print_command: print.printer_Photo_Booth_Canon_M6320_Printer.print_downloadfonts: false print.printer_Photo_Booth_Canon_M6320_Printer.print_duplex: -437918235 print.printer_Photo_Booth_Canon_M6320_Printer.print_edge_bottom: 0 print.printer_Photo_Booth_Canon_M6320_Printer.print_edge_left: 0 print.printer_Photo_Booth_Canon_M6320_Printer.print_edge_right: 0 print.printer_Photo_Booth_Canon_M6320_Printer.print_edge_top: 0 print.printer_Photo_Booth_Canon_M6320_Printer.print_evenpages: true print.printer_Photo_Booth_Canon_M6320_Printer.print_footercenter: print.printer_Photo_Booth_Canon_M6320_Printer.print_footerleft: &PT print.printer_Photo_Booth_Canon_M6320_Printer.print_footerright: &D print.printer_Photo_Booth_Canon_M6320_Printer.print_headercenter: print.printer_Photo_Booth_Canon_M6320_Printer.print_headerleft: &T print.printer_Photo_Booth_Canon_M6320_Printer.print_headerright: &U print.printer_Photo_Booth_Canon_M6320_Printer.print_in_color: true print.printer_Photo_Booth_Canon_M6320_Printer.print_margin_bottom: 0.5 print.printer_Photo_Booth_Canon_M6320_Printer.print_margin_left: 0.5 print.printer_Photo_Booth_Canon_M6320_Printer.print_margin_right: 0.5 print.printer_Photo_Booth_Canon_M6320_Printer.print_margin_top: 0.5 print.printer_Photo_Booth_Canon_M6320_Printer.print_oddpages: true print.printer_Photo_Booth_Canon_M6320_Printer.print_orientation: 0 print.printer_Photo_Booth_Canon_M6320_Printer.print_page_delay: 50 print.printer_Photo_Booth_Canon_M6320_Printer.print_paper_data: 1 print.printer_Photo_Booth_Canon_M6320_Printer.print_paper_height: 11.00 print.printer_Photo_Booth_Canon_M6320_Printer.print_paper_name: print.printer_Photo_Booth_Canon_M6320_Printer.print_paper_size_type: 0 print.printer_Photo_Booth_Canon_M6320_Printer.print_paper_size_unit: 0 print.printer_Photo_Booth_Canon_M6320_Printer.print_paper_width: 8.50 print.printer_Photo_Booth_Canon_M6320_Printer.print_plex_name: print.printer_Photo_Booth_Canon_M6320_Printer.print_resolution: -437918235 print.printer_Photo_Booth_Canon_M6320_Printer.print_resolution_name: print.printer_Photo_Booth_Canon_M6320_Printer.print_reversed: false print.printer_Photo_Booth_Canon_M6320_Printer.print_scaling: 1.00 print.printer_Photo_Booth_Canon_M6320_Printer.print_shrink_to_fit: true print.printer_Photo_Booth_Canon_M6320_Printer.print_to_file: false print.printer_Photo_Booth_Canon_M6320_Printer.print_unwriteable_margin_bottom: 0 print.printer_Photo_Booth_Canon_M6320_Printer.print_unwriteable_margin_left: 0 print.printer_Photo_Booth_Canon_M6320_Printer.print_unwriteable_margin_right: 0 print.printer_Photo_Booth_Canon_M6320_Printer.print_unwriteable_margin_top: 0
Graphics
Adapter Description: ATI Radeon Xpress 1150 Vendor ID: 0x1002 Device ID: 0x5974 Adapter RAM: Unknown Adapter Drivers: atiumd64 atiumdag atiumdva atiumd6a atitmm64 Driver Version: 8.593.100.0 Driver Date: 2-10-2010 Direct2D Enabled: Blocked for your graphics driver version. Try updating your graphics driver to version 9.6 or newer. DirectWrite Enabled: false (6.2.9200.17568) ClearType Parameters: ClearType parameters not found WebGL Renderer: Blocked for your graphics driver version. Try updating your graphics driver to version 9.6 or newer. GPU Accelerated Windows: 0. Blocked for your graphics driver version. Try updating your graphics driver to version 9.6 or newer.
AzureCanvasBackend: skia AzureSkiaAccelerated: 0 AzureFallbackCanvasBackend: cairo AzureContentBackend: cairo
JavaScript
Incremental GC: 1
Accessibility
Activated: 0 Prevent Accessibility: 0
Library Versions
Expected minimum version Version in use
NSPR 4.10.10 4.10.10
NSS 3.19.2.3 Basic ECC 3.19.2.3 Basic ECC
NSS Util 3.19.2.3 3.19.2.3
NSS SSL 3.19.2.3 Basic ECC 3.19.2.3 Basic ECC
NSS S/MIME 3.19.2.3 Basic ECC 3.19.2.3 Basic ECC
Wšě wotmołwy (1)
Do the non-recipients receive any notification about these failures? Are your messages being put into their spam folders?
My suspicion is that your mail provider's email servers have been blacklisted, possibly because they are not sufficiently proactive in dealing with spam and malware originating from their network. Spammers and other bad people are unlikely to be using their webmail for their nefarious activities so webmail doesn't acquire the same bad reputation, and your messages sent via webmail get there unscathed.