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Cannot send or receive messages: nothing changed, settings verified

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  • 최종 답변자: Andrew

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Can send/receive with Gmail webmail, but not TB. Have changed IMAP settings as per https://support.google.com/mail/answer/78892?hl=en&ref_topic=3397500 (though hadn't knowingly changed anything to cause problem). Rebooted.

Use 9 Gmail accounts & 1 ntlWorld, all of which get same error msg when trying to send: "The message could not be sent because the connection to SMTP server smtp.gmail.com timed out." Troubleshooting info:

   Name: Thunderbird
   Version: 31.3.0
   User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.3.0
   Profile Folder: Show Folder
             (Local drive)
   Application Build ID: 20141127140543
   Enabled Plugins: about:plugins
   Build Configuration: about:buildconfig
   Memory Use: about:memory
 Mail and News Accounts
   account2:
     INCOMING: account2, , (none) Local Folders, SSL, passwordCleartext
   account3:
     INCOMING: account3, , (imap) imap.gmail.com:993, SSL, passwordCleartext
     OUTGOING: smtp.gmail.com:465, SSL, passwordCleartext, true
   account5:
     INCOMING: account5, , (imap) imap.gmail.com:993, SSL, passwordCleartext
     OUTGOING: smtp.gmail.com:465, SSL, passwordCleartext, true
   account11:
     INCOMING: account11, , (imap) imap.gmail.com:993, SSL, passwordCleartext
     OUTGOING: smtp.gmail.com:465, SSL, passwordCleartext, true
   account12:
     INCOMING: account12, , (imap) imap.ntlworld.com:993, SSL, passwordCleartext
     OUTGOING: smtp.ntlworld.com:465, SSL, passwordCleartext, true
   account14:
     INCOMING: account14, , (imap) imap.gmail.com:993, SSL, passwordCleartext
     OUTGOING: smtp.gmail.com:465, SSL, passwordCleartext, true
   account16:
     INCOMING: account16, , (imap) imap.gmail.com:993, SSL, passwordCleartext
     OUTGOING: smtp.gmail.com:465, SSL, passwordCleartext, true
   account18:
     INCOMING: account18, , (imap) imap.gmail.com:993, SSL, passwordCleartext
     OUTGOING: smtp.gmail.com:465, SSL, passwordCleartext, true
   account20:
     INCOMING: account20, , (imap) imap.gmail.com:993, SSL, passwordCleartext
     OUTGOING: smtp.gmail.com:465, SSL, passwordCleartext, true
   account21:
     INCOMING: account21, , (imap) imap.gmail.com:993, SSL, passwordCleartext
     OUTGOING: smtp.gmail.com:465, SSL, passwordCleartext, true
   account22:
     INCOMING: account22, , (imap) imap.gmail.com:993, SSL, passwordCleartext
     OUTGOING: smtp.gmail.com:465, SSL, passwordCleartext, true
 Crash Reports
   http://crash-stats.mozilla.com/report/index/bp-424587a6-5a70-4029-bb05-dffbe2141207 (Sun 7 Dec 14)
 Extensions
   Auto Compress File, 0.5.3, true, AutoCompressFile@gmail.com
   Babylon Word Search, 2.0, true, {a27007d0-bec0-4df7-abf8-54ae0b833ce8}
   CompactHeader, 2.0.9, true, {58D4392A-842E-11DE-B51A-C7B855D89593}
   Console², 0.9, true, {1280606b-2510-4fe0-97ef-9b5a22eafe80}
   Contact Tabs, 2.0.12, true, contacttabs@janek.org
   Disable "You", 1.1, true, {79F88CCE-DC6B-11DE-A153-58A455D89593}
   Display Contact Photo, 1.2.7, true, contactPhoto@leven.ch
   Flat Folder Tree, 1.1.2, true, flatfoldertree@hdgadgets.com
   Folder Account, 6.0, true, {C8534C26-F59A-11DA-9804-B622A1EF5492}
   Highlighter, 0.6.5, true, andre.rodier-highlighter@gmailcom
   ImportExportTools, 3.1, true, {3ed8cc52-86fc-4613-9026-c1ef969da4c3}
   Manually sort folders, 1.1, true, tbsortfolders@xulforum.org
   messagenotesplus, 1.4.0.8, true, messagenotesplus@mozilla.org
   MoreFunctionsForAddressBook, 0.7.1, true, {3e17310d-82e8-4a43-bd2f-7c3055bfe589}
   Quick Translator, 1.0, true, {5C655500-E712-41e7-9349-CE462F844B19}
   QuickFolders, 3.14.1, true, quickfolders@curious.be
   Remove Duplicate Messages (Alternate), 0.3.10, true, {a300a000-5e21-4ee0-a115-9ec8f4eaa92b}
   Search for Sender, 1.3.2, true, searchforsender@einaregilsson.com
   Select Addressbook Text, 1.5, true, select_addressbook_text@cbmarkwardt.com
   Sender Name, 0.7, true, {52b8c721-5d3a-4a2b-835e-d3f044b74351}
   TBDialOut, 1.7.2, true, tbdialout@oak-wood.co.uk
   TorBirdy, 0.1.3, false, castironthunderbirdclub@torproject.org
 Important Modified Preferences
   Name: Value
     accessibility.typeaheadfind.flashBar: 0
     browser.cache.disk.capacity: 1048576
     browser.cache.disk.smart_size.first_run: false
     browser.cache.disk.smart_size.use_old_max: false
     browser.cache.disk.smart_size_cached_value: 358400
     browser.cache.memory.max_entry_size: 30720
     dom.max_chrome_script_run_time: 0
     dom.report_all_js_exceptions: true
     extensions.lastAppVersion: 31.3.0
     font.internaluseonly.changed: false
     font.minimum-size.x-western: 12
     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: 15
     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
     gfx.blacklist.suggested-driver-version: 10.6
     javascript.options.strict: true
     mail.openMessageBehavior.version: 1
     mail.winsearch.firstRunDone: true
     mailnews.database.global.datastore.id: 62ee936b-486a-441d-9cf6-1761bb46a42
     mailnews.database.global.views.conversation.columns: {"threadCol":{"visible":true,"ordinal":"1"},"flaggedCol":{"visible":true,"ordinal":"3"},"attachmentCol":{"visible":false…
     network.cookie.prefsMigrated: true
     places.database.lastMaintenance: 1418433667
     places.history.enabled: true
     places.history.expiration.transient_current_max_pages: 103719
     places.history.expiration.transient_optimal_database_size: 82734448
     plugin.importedState: true
     print.printer_Microsoft_XPS_Document_Writer.print_bgcolor: false
     print.printer_Microsoft_XPS_Document_Writer.print_bgimages: false
     print.printer_Microsoft_XPS_Document_Writer.print_evenpages: true
     print.printer_Microsoft_XPS_Document_Writer.print_footercenter:
     print.printer_Microsoft_XPS_Document_Writer.print_footerleft: &PT
     print.printer_Microsoft_XPS_Document_Writer.print_footerright: &D
     print.printer_Microsoft_XPS_Document_Writer.print_headercenter:
     print.printer_Microsoft_XPS_Document_Writer.print_headerleft: &T
     print.printer_Microsoft_XPS_Document_Writer.print_headerright: &U
     print.printer_Microsoft_XPS_Document_Writer.print_in_color: true
     print.printer_Microsoft_XPS_Document_Writer.print_margin_bottom: 0.5
     print.printer_Microsoft_XPS_Document_Writer.print_margin_left: 0.5
     print.printer_Microsoft_XPS_Document_Writer.print_margin_right: 0.5
     print.printer_Microsoft_XPS_Document_Writer.print_margin_top: 0.5
     print.printer_Microsoft_XPS_Document_Writer.print_oddpages: true
     print.printer_Microsoft_XPS_Document_Writer.print_orientation: 1
     print.printer_Microsoft_XPS_Document_Writer.print_reversed: false
     print.printer_Microsoft_XPS_Document_Writer.print_scaling: 1.00
     print.printer_Microsoft_XPS_Document_Writer.print_shrink_to_fit: true
     security.default_personal_cert: Select Automatically
     security.disable_button.openCertManager: false
     security.disable_button.openDeviceManager: false
     security.OCSP.disable_button.managecrl: false
 Graphics
     Adapter Description: ATI Mobility Radeon HD 4570
     Vendor ID: 0x1002
     Device ID: 0x9553
     Adapter RAM: Unknown
     Adapter Drivers: atiumdag atidxx32 atidxx64 atiumdva atiumd64 atiumd6a atitmm64
     Driver Version: 8.612.0.0
     Driver Date: 4-28-2009
     Direct2D Enabled: Blocked for your graphics driver version. Try updating your graphics driver to version 10.6 or newer.
     DirectWrite Enabled: false (6.2.9200.16571)
     ClearType Parameters: Gamma: 2200 Pixel Structure: R ClearType Level: 100 Enhanced Contrast: 50
     WebGL Renderer: Blocked for your graphics driver version. Try updating your graphics driver to version 10.6 or newer.
     GPU Accelerated Windows: 0. Blocked for your graphics driver version. Try updating your graphics driver to version 10.6 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
     4.10.6
     4.10.6
     NSS
     3.16.2.3 Basic ECC
     3.16.2.3 Basic ECC
     NSS Util
     3.16.2.3
     3.16.2.3
     NSS SSL
     3.16.2.3 Basic ECC
     3.16.2.3 Basic ECC
Can send/receive with Gmail webmail, but not TB. Have changed IMAP settings as per https://support.google.com/mail/answer/78892?hl=en&ref_topic=3397500 (though hadn't knowingly changed anything to cause problem). Rebooted. Use 9 Gmail accounts & 1 ntlWorld, all of which get same error msg when trying to send: "The message could not be sent because the connection to SMTP server smtp.gmail.com timed out." Troubleshooting info: Name: Thunderbird Version: 31.3.0 User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.3.0 Profile Folder: Show Folder (Local drive) Application Build ID: 20141127140543 Enabled Plugins: about:plugins Build Configuration: about:buildconfig Memory Use: about:memory Mail and News Accounts account2: INCOMING: account2, , (none) Local Folders, SSL, passwordCleartext account3: INCOMING: account3, , (imap) imap.gmail.com:993, SSL, passwordCleartext OUTGOING: smtp.gmail.com:465, SSL, passwordCleartext, true account5: INCOMING: account5, , (imap) imap.gmail.com:993, SSL, passwordCleartext OUTGOING: smtp.gmail.com:465, SSL, passwordCleartext, true account11: INCOMING: account11, , (imap) imap.gmail.com:993, SSL, passwordCleartext OUTGOING: smtp.gmail.com:465, SSL, passwordCleartext, true account12: INCOMING: account12, , (imap) imap.ntlworld.com:993, SSL, passwordCleartext OUTGOING: smtp.ntlworld.com:465, SSL, passwordCleartext, true account14: INCOMING: account14, , (imap) imap.gmail.com:993, SSL, passwordCleartext OUTGOING: smtp.gmail.com:465, SSL, passwordCleartext, true account16: INCOMING: account16, , (imap) imap.gmail.com:993, SSL, passwordCleartext OUTGOING: smtp.gmail.com:465, SSL, passwordCleartext, true account18: INCOMING: account18, , (imap) imap.gmail.com:993, SSL, passwordCleartext OUTGOING: smtp.gmail.com:465, SSL, passwordCleartext, true account20: INCOMING: account20, , (imap) imap.gmail.com:993, SSL, passwordCleartext OUTGOING: smtp.gmail.com:465, SSL, passwordCleartext, true account21: INCOMING: account21, , (imap) imap.gmail.com:993, SSL, passwordCleartext OUTGOING: smtp.gmail.com:465, SSL, passwordCleartext, true account22: INCOMING: account22, , (imap) imap.gmail.com:993, SSL, passwordCleartext OUTGOING: smtp.gmail.com:465, SSL, passwordCleartext, true Crash Reports http://crash-stats.mozilla.com/report/index/bp-424587a6-5a70-4029-bb05-dffbe2141207 (Sun 7 Dec 14) Extensions Auto Compress File, 0.5.3, true, AutoCompressFile@gmail.com Babylon Word Search, 2.0, true, {a27007d0-bec0-4df7-abf8-54ae0b833ce8} CompactHeader, 2.0.9, true, {58D4392A-842E-11DE-B51A-C7B855D89593} Console², 0.9, true, {1280606b-2510-4fe0-97ef-9b5a22eafe80} Contact Tabs, 2.0.12, true, contacttabs@janek.org Disable "You", 1.1, true, {79F88CCE-DC6B-11DE-A153-58A455D89593} Display Contact Photo, 1.2.7, true, contactPhoto@leven.ch Flat Folder Tree, 1.1.2, true, flatfoldertree@hdgadgets.com Folder Account, 6.0, true, {C8534C26-F59A-11DA-9804-B622A1EF5492} Highlighter, 0.6.5, true, andre.rodier-highlighter@gmailcom ImportExportTools, 3.1, true, {3ed8cc52-86fc-4613-9026-c1ef969da4c3} Manually sort folders, 1.1, true, tbsortfolders@xulforum.org messagenotesplus, 1.4.0.8, true, messagenotesplus@mozilla.org MoreFunctionsForAddressBook, 0.7.1, true, {3e17310d-82e8-4a43-bd2f-7c3055bfe589} Quick Translator, 1.0, true, {5C655500-E712-41e7-9349-CE462F844B19} QuickFolders, 3.14.1, true, quickfolders@curious.be Remove Duplicate Messages (Alternate), 0.3.10, true, {a300a000-5e21-4ee0-a115-9ec8f4eaa92b} Search for Sender, 1.3.2, true, searchforsender@einaregilsson.com Select Addressbook Text, 1.5, true, select_addressbook_text@cbmarkwardt.com Sender Name, 0.7, true, {52b8c721-5d3a-4a2b-835e-d3f044b74351} TBDialOut, 1.7.2, true, tbdialout@oak-wood.co.uk TorBirdy, 0.1.3, false, castironthunderbirdclub@torproject.org Important Modified Preferences Name: Value accessibility.typeaheadfind.flashBar: 0 browser.cache.disk.capacity: 1048576 browser.cache.disk.smart_size.first_run: false browser.cache.disk.smart_size.use_old_max: false browser.cache.disk.smart_size_cached_value: 358400 browser.cache.memory.max_entry_size: 30720 dom.max_chrome_script_run_time: 0 dom.report_all_js_exceptions: true extensions.lastAppVersion: 31.3.0 font.internaluseonly.changed: false font.minimum-size.x-western: 12 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: 15 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 gfx.blacklist.suggested-driver-version: 10.6 javascript.options.strict: true mail.openMessageBehavior.version: 1 mail.winsearch.firstRunDone: true mailnews.database.global.datastore.id: 62ee936b-486a-441d-9cf6-1761bb46a42 mailnews.database.global.views.conversation.columns: {"threadCol":{"visible":true,"ordinal":"1"},"flaggedCol":{"visible":true,"ordinal":"3"},"attachmentCol":{"visible":false… network.cookie.prefsMigrated: true places.database.lastMaintenance: 1418433667 places.history.enabled: true places.history.expiration.transient_current_max_pages: 103719 places.history.expiration.transient_optimal_database_size: 82734448 plugin.importedState: true print.printer_Microsoft_XPS_Document_Writer.print_bgcolor: false print.printer_Microsoft_XPS_Document_Writer.print_bgimages: false print.printer_Microsoft_XPS_Document_Writer.print_evenpages: true print.printer_Microsoft_XPS_Document_Writer.print_footercenter: print.printer_Microsoft_XPS_Document_Writer.print_footerleft: &PT print.printer_Microsoft_XPS_Document_Writer.print_footerright: &D print.printer_Microsoft_XPS_Document_Writer.print_headercenter: print.printer_Microsoft_XPS_Document_Writer.print_headerleft: &T print.printer_Microsoft_XPS_Document_Writer.print_headerright: &U print.printer_Microsoft_XPS_Document_Writer.print_in_color: true print.printer_Microsoft_XPS_Document_Writer.print_margin_bottom: 0.5 print.printer_Microsoft_XPS_Document_Writer.print_margin_left: 0.5 print.printer_Microsoft_XPS_Document_Writer.print_margin_right: 0.5 print.printer_Microsoft_XPS_Document_Writer.print_margin_top: 0.5 print.printer_Microsoft_XPS_Document_Writer.print_oddpages: true print.printer_Microsoft_XPS_Document_Writer.print_orientation: 1 print.printer_Microsoft_XPS_Document_Writer.print_reversed: false print.printer_Microsoft_XPS_Document_Writer.print_scaling: 1.00 print.printer_Microsoft_XPS_Document_Writer.print_shrink_to_fit: true security.default_personal_cert: Select Automatically security.disable_button.openCertManager: false security.disable_button.openDeviceManager: false security.OCSP.disable_button.managecrl: false Graphics Adapter Description: ATI Mobility Radeon HD 4570 Vendor ID: 0x1002 Device ID: 0x9553 Adapter RAM: Unknown Adapter Drivers: atiumdag atidxx32 atidxx64 atiumdva atiumd64 atiumd6a atitmm64 Driver Version: 8.612.0.0 Driver Date: 4-28-2009 Direct2D Enabled: Blocked for your graphics driver version. Try updating your graphics driver to version 10.6 or newer. DirectWrite Enabled: false (6.2.9200.16571) ClearType Parameters: Gamma: 2200 Pixel Structure: R ClearType Level: 100 Enhanced Contrast: 50 WebGL Renderer: Blocked for your graphics driver version. Try updating your graphics driver to version 10.6 or newer. GPU Accelerated Windows: 0. Blocked for your graphics driver version. Try updating your graphics driver to version 10.6 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 4.10.6 4.10.6 NSS 3.16.2.3 Basic ECC 3.16.2.3 Basic ECC NSS Util 3.16.2.3 3.16.2.3 NSS SSL 3.16.2.3 Basic ECC 3.16.2.3 Basic ECC

모든 댓글 (6)

more options

To diagnose your problems with Thunderbird, try the following:

If safe mode for the operating system fixes the issue, there's other software in your computer that's causing problems. Possibilities include but not limited to: AV scanning, virus/malware, background downloads such as program updates.
more options

Thanks for that! I can send/receive in Safe Mode.

In Normal Mode, I disabled

  • the 3 avast services
  • the 3 Comodo services
  • Windows Firewall (already disabled due to having Comodo)
  • the 3 Skype services (update recently installed)
  • the 1 TeamViewer service (update recently installed)
  • the Silverlight plugin (update recently installed).

I restarted, then ended process

  • CCleaner64.exe (recently installed)
  • OUTLOOK.EXE *32 (update recently installed).

avast & Comodo were still running in Processes, access denied.

Still couldn't send/receive. Sometimes, error msg isn't about timing out, but 'unknown reason' (unsure of when).

Have been Windows updates, but thousands of other Thunderbird users must've had those too.

What do you suggest?

글쓴이 Andrew 수정일시

more options

Suddenly found I could send/receive in Normal Mode, so added 1 service/process/option at a time. Eventually found a culprit - sort of.

When avast Mail Shield is off, Thunderbird will send/receive. However, when it's on, and all the other options off, it won't. Every time.

Bet you can't explain that!

more options

It is easier to explain that you think, and one of the reasons we suggest operating system safe mode. People do not believe us when we say most connectivity issues are anti virus caused.

I can not speak to avast specifically, but I can tell you most anti virus programs have a database, either as a firewall component or in the case of avast internally, that describes the "trusted applications" and any special actions they need to take so play in the sand box happily. Unfortunately these guys get very specific about what constitutes "XXX" Trusted application a change in version number from 31.1.1 to 31.1.2 is enough to bowl some of them over. The others use an MD5 hash of the actual executable I think. The net result new version and the AV goes nuts.

Some anti virus programs also insert themselves into the communications flow as a proxy. So when Thunderbird connects to mail.gmail.com. What actually happens is Thunderbird initiates the connection, but the proxy is already in the way. so it receives the request and passes it along but not gmail is talking to the proxy, not Thunderbird. This allows the anti virus to scan what is supposed to be an encrypted connection as it has all the necessary keys (it is in the middle) to decrypt the data stream. All good, except is the anti virus drops the ball, then Thunderbird gives you silly error messages that rarely make sense and your mail stops.

There is another more insidious issue here. As the anti virus is decrypting all communications into plain text to scan it, it is very easy to use government pressure to insert a backdoor into the scanning to siphon off unencrypted information. Perhaps not an issue for you or me. My mail is boring, your probably is to. But when handling sensitive data, anti virus is actually a security hole.

글쓴이 Matt 수정일시

more options

Oh and see my notes on ccleaner... http://thunderbirdtweaks.blogspot.com.au/2012/06/thunderbird-and-ccleaner-or-my-settings.html

I have not looked in a long while. They may no longer be valid concerns. Perhaps you can tell me :)

more options

1. This is all a bit technical for me, but Thunderbird can now send/receive. Avast's response was

Avast is monitoring email but can sometimes interfere with Thunderbird, due to the email platform's default SSL protocol encryption used to establish secure connection to mail servers.

You need to create mail certificate and import to Thunderbird:

Go to Avast > Settings > Active Protection > Mail Shield Customise > SSL scanning > Export certificate > export to desktop

Then import mail certificate into Thunderbird:

Go to Thunderbird > Tools > Options > Advanced > Certificates > View Certificates > Authorities > Import...

Locate Mail Shield certificate exported to desktop > Open.

When asked if you want to trust Mail Shield certificate: 'Trust this CA to identify websites' > OK.

In Certificate Manager, select Servers and ensure no entry titled 'avast! Mail Scanner'. If exists, delete all related certificates. Click OK.

Options window: OK.

Instead of being asked if I wanted to trust Mail Shield certificate, it said "This certificate is already installed as a certificate authority." Avast's response was to disable SSL protocol in Avast by going to > Active Protection > Mail Shield Settings > SSL scanning > uncheck.

Your email of 23 Dec 02:07 UK time was too difficult for me to follow, so I put to Avast using your wording, "Is there back door into scanning, to siphon off unencrypted mail?" Their reply was only "Avast is not instantly blocking unencrypted mail." I don't understand what you suggested well enough to follow up. Maybe you can help?

2. Re CCleaner settings:

a) When Thunderbird opens, what's displayed in preview pane is a webpage, isn't it? Further, there's an extension which enables browser tabs to open in Thunderbird by clicking email links.

b) CCleaner's been run while Session's been checked. Unchecked now, but how do I get back desired settings?

c) Only problems which are since about the time I ran CCleaner are that, i) using Unified Folders view, if click on Sent or Archives then drag my pointer down the messages, 1 by 1 they disappear. They're still in respective account folders. If click elsewhere then Sent or Archives again, emails are there again but same happens. ii) new sent/received emails are duplicated in Drafts. If deleted from Sent/Inbox, they remain in Drafts.

글쓴이 Andrew 수정일시