Can receive emails but cannot send
No problem for years, now get the attached error message when starting Send. I have altered my SMTP settings to every available security, authorisation and port possibility including no authentication, normal password and OAuth2. Nothing works; always the same error message. My ISP is U W Club (uwclub.net). I can send as U W Club webmail so they advise that the problem is a Thunderbird problem sending from Thunderbird to their server. I've tried their server as smtp.uwclub.net, which has worked for years, and also mail.uwclub.net which they also advise is their server address.
Current SMTP settings are form me XXXXXXXXX@uwclub.net . smtp.uwclub.net Port 587 (default 587), STARTTLS, Normal password.
Most of the Thunderbird Troubleshooting data is as follows - lots of printer info omitted. (Impossible to attach it as a Word document or PDF! ) ...... Application Basics Name Thunderbird Version 52.6.0 User Agent Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 Profile Folder Show in Finder Application Build ID 20180123185941 Enabled Plugins about:plugins
Build Configuration about:buildconfig
Memory Use about:memory
Profiles about:profiles
Mail and News Accounts ID Incoming server Outgoing servers Name Connection security Authentication method Name Connection security Authentication method Default? account1 (none) Local Folders plain passwordCleartext account2 (pop3) pop3.uwclub.net:110 alwaysSTARTTLS passwordCleartext smtp.uwclub.net:587 alwaysSTARTTLS passwordCleartext true account3 (pop3) pop3.uwclub.net:110 alwaysSTARTTLS passwordCleartext smtp.uwclub.net:587 alwaysSTARTTLS passwordCleartext true account4 (pop3) pop3.uwclub.net:110 alwaysSTARTTLS passwordCleartext smtp.uwclub.net:587 alwaysSTARTTLS passwordCleartext true account6 (pop3) pop3.uwclub.net:110 alwaysSTARTTLS passwordCleartext smtp.uwclub.net:587 alwaysSTARTTLS passwordCleartext true account7 (pop3) pop3.uwclub.net:110 alwaysSTARTTLS passwordCleartext smtp.uwclub.net:587 alwaysSTARTTLS passwordCleartext true account8 (pop3) mail.nmag.co.uk:110 alwaysSTARTTLS passwordCleartext mail.nmag.co.uk:587 alwaysSTARTTLS passwordCleartext true Crash Reports Report ID Submitted bp-d7f3bdd2-10bc-4769-a70f-ae23d2160620 20/06/2016 Extensions Name Version Enabled ID CompactHeader 2.1.4 true {58D4392A-842E-11DE-B51A-C7B855D89593} Get all mails 1.1.4 true GetAllMails@LN200704191215.net Lightning 5.4.6 true {e2fda1a4-762b-4020-b5ad-a41df1933103} QuoteAndComposeManager 0.4.1 true {ce1c1a31-4ec2-484f-8099-e2cb0f381c21} Mail Tweak 1.0pre10 false mail-tweak@rod.whiteley Theme Font & Size Changer 56.0 false {f69e22c7-bc50-414a-9269-0f5c344cd94c} Important Modified Preferences Name Value accessibility.typeaheadfind.flashBar 0 browser.cache.disk.capacity 358400 browser.cache.disk.filesystem_reported 1 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_script_run_time 20 extensions.lastAppVersion 52.6.0 font.internaluseonly.changed false font.name.sans-serif.x-western Comic Sans MS font.size.variable.x-western 16 mail.openMessageBehavior.version 1 mail.spotlight.firstRunDone true mailnews.database.global.datastore.id caab42ec-1014-4bc5-bcf8-eb7e0908e8e mailnews.database.global.indexer.enabled false media.gmp.storage.version.observed 1 network.cookie.prefsMigrated true network.predictor.cleaned-up true places.database.lastMaintenance 1518015782 places.history.expiration.transient_current_max_pages 67964 plugin.disable_full_page_plugin_for_types application/pdf plugin.importedState true print.macosx.pagesetup-2 PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz4KPCFET0NUWVBFIHBsaXN0IFBVQkxJQyAiLS8vQXBwbGUvL0RURCBQTElTVCAxLjAvL0VO… print.print_bgcolor false print.print_bgimages false print.print_colorspace print.print_command print.print_downloadfonts false print.print_duplex -437918235 print.print_evenpages true print.print_in_color true print.print_margin_bottom 0.5 print.print_margin_left 0.5 print.print_margin_right 0.5 print.print_margin_top 0.5 print.print_oddpages true print.print_orientation 0 print.print_page_delay 50 print.print_paper_data 0 print.print_paper_height 11.00 print.print_paper_name print.print_paper_size_type 1 print.print_paper_size_unit 0 print.print_paper_width 8.50 print.print_plex_name print.print_printer Samsung ML-6060 Series PCL6 print.print_resolution -437918235 print.print_resolution_name print.print_reversed false print.print_scaling 1.00 print.print_shrink_to_fit true print.print_to_file false print.print_unwriteable_margin_bottom 57 print.print_unwriteable_margin_left 25 print.print_unwriteable_margin_right 25 print.print_unwriteable_margin_top 25 print.printer_Canon_MP640_series_Printer.print_bgcolor false print.printer_Canon_MP640_series_Printer.print_bgimages false print.printer_Canon_MP640_series_Printer.print_command
Modified by Wayne Mery
All Replies (6)
Their recommended settings are:
incoming server: mail.uwclub.net port: 993 for POP, 995 for IMAP Connection security: SSL/TLS Authentication: normal password User name: email address
outgoing server: mail.uwclub.net port: 465 for SSL/TLS or 587 for STARTTLS Connection security: SSL/TLS or STARTTLS Authentication: normal password User name: email address
As I reported, these standard setting DO NOT WORK - that's why I have a problem.
As I also reported it makes no difference whether the server name is mail.uwclub.net or smtp.uwclub.net.
The settings reported in your first post show you're using pop3.uwclub.net on port 110 with STARTTLS security. If that works for you, then keep it. For the outgoing server, try port 465 and SSL/TLS security. If you still get an error, report the exact wording of the error message.
Port 465 for SSL/TLS didn't work either.
The error message for all settings tried is: Send Message Error Sending of the message failed. The message could not be sent using Outgoing server (SMTP) smtp.uwclub.net for an unknown reason. Please verify that your Outgoing server (SMTP) settings are correct and try again".
(1. As I explained, using mail.uwclub.net does work either; if I do I get the same error message but referring to mail.uwclub.net. 2. Apologies. Initially I attempted to provide the error message in a docx file together with the troubleshooting data but it was impossible to attach that information as a docx file or as a pdf file. Weird. When I included the troubleshooting information in the question (no other way) I forgot to add in the error message).
If the problem began suddenly after previously working, it suggests that something on your system changed to cause it. Look at what programs you have running at computer startup, especially security programs. To rule out any 3rd-party interference with TB, start the computer in OSX safe mode, then run TB and see if the problem persists.
Didn't actually solve the problem but it gave a clue. Thanks for the helpful suggestion of trying Tbird in Mac Safe Mode. The problem remains but this seems to have revealed a fundamental Tbird problem that seems to affect only message sending in normal operation.
1. After booting Mac in OSX Safe Mode Tbird is unusable. It is zoomed to about 400% and shows a fixed random part of the folders list; no toolbar header. No slider function to scroll folders. Mac top menu View> Zoom> shows zoom options greyed out. Starting a test send (Command + N) opens a blank page with no addressee or subject header. Word operates OK, browsers operate OK, and no Mac errors reported during Safe Mode boot-up check process. This indicates some problem in Tbird.
(I had uninstalled Tbird several days ago and re-installed the earlier version 52.4.0 but the Send problem remained).
2. Still in OSX Safe Mode. Uninstalled Tbird, downloaded and reinstalled Tbird current 52.6.0. Same problem situation as in 1 above.
3. Re-booted Mac to normal operation. Tbird all normal and OK except only the Send problem.
4. Re-opened Tbird in Tbird Safe Mode (Help> re-start with add-ons disabled). Tbird confirmed in Safe Mode. Attempted email Send: same error message.