Thunderbird-Hilfeforum

I have configured 2 mailboxes in Thunderbird sent some test mails to see if it is working. Now everything works great, but somewhere there is a mail which Thunderbird tries to send out. Unfortunately it looks like the mail is created with mail account 1 and Thunderbird tries to send it with mail account 2. Of course the mail server denies to sent the mail, because the mail address is unknown to him. I checked all outboxes in Thunderbird and at the webinterfaces of the 2 mailboxes and found nothing. I removed all mail boxes and smtp configurations from Thunderbird and uninstalled it. After new installation I still facing the issue. Where can I find the mail Thunderbird is trying to send?

We work with Thunderbird on local PC's but for roaming support we have the Thunderbird profiles on a network drive. Lately we noticed that on occasion the network drive is slow or disconnects for a second at which point Thunderbird looses it's lock or the connection to the profile. This results in then giving a popup to reenter the credentials for the mailbox. Is there some setting in Thunderbird where we can tell it to try again for a few times before giving the error?

I found the option 'network.protocol-handler.external.disks' but I cannot find any description on what this setting actually does, is this setting relevant to this issue?

I would appreciate any help you can give us.

I deleted a mail account from TB and now, every time I open TB, I get the prompt for logging into that account. I can cancel it but it pops up again and again. The account on the prompt has the same name as the one I have now but it asks me to log on a different server (the server I used on the deleted mail account). Other than deleting my mail account again, uninstalling and re-installing TB and re-adding the mail account (all these I would like to avoid if possible), I don't know what else to do. I don't even know if this would work to be honest. Help is greatly appreciated.

I have about 30,000 messages in a local folder on TB. I need to move them to an IMAP folder on my outlook.com account. I have been able to move some but TB just stops moving the files randomly. I have tried: creating a new TB profile Moving small batches Creating a new destination folder on the IMAP account Granting all permissions to destination folder Reindexing TB Compacting the Local folder Checking/Changing SMTP server settings Read everything I could find in various forums There are 'services' that claim to do this for you but require me to grant permissions I am uncomfortable with Thanks for any wisdom you can offer to resolve this.

Updating to version 38.1.0 Start Thunderbird, Starts up OK. Can view messages and write new emails etc OK. If I select "get messages" OR messages are accessed automatically every 5min. then the whole PC crashes. Three finger salute does not bring up task manager. Only way out is to power cycle.

Thanks in advance for your help Cheers Pete

Follows is the Help Troubleshooting info.

 Application Basics

   Name: Thunderbird
   Version: 38.1.0
   User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.1.0
   Profile Folder: Show Folder

             (Local drive)
   Application Build ID: 20150707103124
   Enabled Plugins: about:plugins
   Build Configuration: about:buildconfig
   Memory Use: about:memory

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

   account3:
     INCOMING: account3, , (pop3) pop3.talktalk.net:110, plain, passwordCleartext
     OUTGOING: smtp.talktalk.net:587, alwaysSTARTTLS, passwordCleartext, true

 Crash Reports

 Extensions
   Lightning, 4.0.1, true, {e2fda1a4-762b-4020-b5ad-a41df1933103}

 Important Modified Preferences

   Name: Value

     accessibility.typeaheadfind.flashBar: 0
     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
     extensions.lastAppVersion: 38.1.0
     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
     gfx.direct3d.last_used_feature_level_idx: 1
     mail.openMessageBehavior.version: 1
     mail.winsearch.firstRunDone: true
     mailnews.database.global.datastore.id: 268c1c45-39c9-4fb8-af58-00e0c832e32
     network.cookie.prefsMigrated: true
     network.predictor.cleaned-up: true
     places.database.lastMaintenance: 1436862237
     places.history.expiration.transient_current_max_pages: 104858
     plugin.importedState: true

 Graphics

     Adapter Description: Intel(R) G41 Express Chipset
     Vendor ID: 0x8086
     Device ID: 0x2e32
     Adapter RAM: Unknown
     Adapter Drivers: igdumd64 igd10umd64 igdumdx32 igd10umd32
     Driver Version: 8.15.10.2302
     Driver Date: 2-11-2011
     Direct2D Enabled: false
     DirectWrite Enabled: false (6.2.9200.17292)
     ClearType Parameters: Gamma: 2200 Pixel Structure: R ClearType Level: 100 Enhanced Contrast: 50
     WebGL Renderer: false
     GPU Accelerated Windows: 1/1 Direct3D 11 WARP

     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
     4.10.8
     4.10.8

     NSS
     3.19.2 Basic ECC
     3.19.2 Basic ECC

     NSS Util
     3.19.2
     3.19.2

     NSS SSL
     3.19.2 Basic ECC
     3.19.2 Basic ECC

     NSS S/MIME
     3.19.2 Basic ECC
     3.19.2 Basic ECC

Hello, have any of you encountered such a problem as different email content than it should be? On the main server the content is correct, only through the thunderbird application I encountered such a problem. Is there any solution to this problem ?

Hello, I was wondering if anyone has noticed that it takes super long for Thunderbird really long to open? and it is very slow to load an email the slows my whole computer down? This has been happening the last 2 days and am wondering if there is an issue with the newest update?

Thank you Cherie

Since I too am having many problems with passwords I wonder if I were to reinstall TB if that would solve the problem. Is there any way to save my contacts before I do a reinstall so that my contacts/addresses are easily replaced after the reinstall? Or am I not going to fix the password problem by doing a reinstall?

Nearly every day I have to quit Thunderbird and reopen it as, it will not connect to my server. This means that all the viewing criteria and spending/descending has to be reset and is a real drag. As soon as I reopen Thunderbird it works normally again.

I have used the same connection details for years and it is just the last two Thunderbird versions that have replicated this issue. It's not always every morning when I wake my iMac up, but normally happens then or, later during the day.

I asked this question for 102.3.1 but received no answers so, I am hoping that there will be an answer to this.

Thanks

There is no mystery to what's happening here. Programming 101: a security exception doesn't get reset every 2 or 3 passes unless some malicious or incompetent programmer set up a countdown loop to reset it. And who would do that kind of thing to users unless some malicious jerk wants to pressure the users into fighting his or her political programming battles with other net entities? I turn 77 this month, and last year had a tumor removed from inside my spinal cord that, while slow-growing and essentially benign, caused horrific pain. People my age and condition save our energy for things that really matter to us. That doesn't include Lilliputian battles over which end of the egg to open. So suck up your egos and resolve this among each other.

This is a new one... Windows 10 1TB SSD Newest version T'bird

History: Upgraded from 500BG to 1TB using ISO Imaging software

Issue: The ISO Imaging went well and the new 1TB account showed 485GB which was accurate. The next day my 1TB drive was full 998GB and my Thunderbird SBD folder was 743GB. Every time I delete data to create space my imap.gmail.com folder grows (Currently 736GB).

Help!!!

When I send email with an attachment (not very large attachment) it takes forever and then I eventually get a message back that the out going server has timed out and the message is then automatically saved in my Draft folder. However, it seems the message and attachment are actually sent and received by the recipient. Is the system not recognizing that the message is complete and just stays in the send mode until the server times out?

Have one PC that thunderbird is crashing on. Program appears on the screen for a second or two then crashes, then I get the crash report popup. I tried starting thunderbird in safe mode and had the same results. Here are the last two crash reports, I have more if needed. bp-69869915-73ce-42e9-ab1b-30bbf0221122 bp-2b617d21-dc6c-4dcb-863f-27ff50221122

Thank you for any help that you may offer.

Has anyone received this message or know how to fix the issue that may be causing it?

The reason for the problem: 5.3.0 - Other mail system problem 554-'5.4.14 Hop count exceeded - possible mail loop ATTR34 [BL0GCC02FT003.eop-gcc02.prod.protection.outlook.com]'

My Mozilla Thunderbird Crashes since I did a windows update

The following was done 1. Start thunderbird in safe mode 2. Disable anti virus software (Malwarebytes/Bitdefender) 3. Update thunerbird 4. Uninstall and reinstall mozilla thunderbird

Nothing has solved the problem

Crash data below:

AdapterDeviceID: 0x3e9b AdapterDriverVersion: 31.0.101.2114 AdapterSubsysID: 08251028 AdapterVendorID: 0x8086 Add-ons: bdThunderbird78%40bitdefender.com:24.22.0.13,google%40search.mozilla.org:1.0,amazondotcom%40search.mozilla.org:1.1,bing%40search.mozilla.org:1.0,ddg%40search.mozilla.org:1.0,wikipedia%40search.mozilla.org:1.0,default-theme%40mozilla.org:1.3 AvailablePageFile: 15623610368 AvailablePhysicalMemory: 3021438976 AvailableVirtualMemory: 138522152501248 BackgroundTaskMode: 0 BlockedDllList: BuildID: 20221101185644 CPUMicrocodeVersion: 0xf0 ContentSandboxCapable: 1 ContentSandboxLevel: 1 ContentSandboxWin32kState: Win32k Lockdown enabled -- default value is true CrashTime: 1668387715 DOMFissionEnabled: 1 DOMIPCEnabled: 1 GPUProcessLaunchCount: 1 GPUProcessStatus: Running HeadlessMode: 0 InstallTime: 1668130691 LauncherProcessState: 0 ModuleSignatureInfo: {"Bitdefender SRL":["gemmauf64.dll","atcuf64.dll","bdhkm64.dll"],"Microsoft Corporation":["msvcp140.dll","VCRUNTIME140.dll"],"Microsoft Windows":["TaskFlowDataEngine.dll","twinapi.dll","ntshrui.dll","explorerframe.dll","Windows.Security.Integrity.dll","dataexchange.dll","linkinfo.dll","cdp.dll","pnrpnsp.dll","NapiNSP.dll","winrnr.dll","ondemandconnroutehelper.dll","cscapi.dll","dbgcore.dll","wsock32.dll","webauthn.dll","OneCoreCommonProxyStub.dll","msimg32.dll","directmanipulation.dll","Windows.Globalization.dll","DWrite.dll","wininet.dll","FWPUCLNT.DLL","BCP47mrm.dll","InputHost.dll","textinputframework.dll","Windows.UI.dll","Bcp47Langs.dll","iertutil.dll","srvcli.dll","urlmon.dll","wscapi.dll","OneCoreUAPCommonProxyStub.dll","npmproxy.dll","dhcpcsvc6.DLL","twinapi.appcore.dll","AudioSes.dll","dhcpcsvc.dll","WindowManagementAPI.dll","rasadhlp.dll","winnsi.dll","MMDevAPI.dll","avrt.dll","version.dll","usp10.dll","ColorAdapterClient.dll","mscms.dll","wtsapi32.dll","netprofm.dll","wshbth.dll","dsreg.dll","policymanager.dll","d3d11.dll","dcomp.dll","CoreUIComponents.dll","CoreMessaging.dll","uxtheme.dll","nlaapi.dll","WinTypes.dll","winhttp.dll","winmm.dll","propsys.dll","dwmapi.dll","dbghelp.dll","windows.storage.dll","gpapi.dll","kernel.appcore.dll","dxgi.dll","winsta.dll","rsaenh.dll","msvcp110_win.dll","ntmarta.dll","umpdc.dll","IPHLPAPI.DLL","dnsapi.dll","netutils.dll","powrprof.dll","mswsock.dll","CRYPTBASE.DLL","cryptsp.dll","wldp.dll","msasn1.dll","devobj.dll","sspicli.dll","userenv.dll","profapi.dll","msvcp_win.dll","bcrypt.dll","crypt32.dll","win32u.dll","KERNELBASE.dll","cfgmgr32.dll","ucrtbase.dll","bcryptPrimitives.dll","gdi32full.dll","wintrust.dll","shlwapi.dll","SHCore.dll","oleaut32.dll","kernel32.dll","sechost.dll","imm32.dll","setupapi.dll","msctf.dll","nsi.dll","combase.dll","user32.dll","advapi32.dll","msvcrt.dll","shell32.dll","gdi32.dll","rpcrt4.dll","ole32.dll","ws2_32.dll","clbcatq.dll","psapi.dll","ntdll.dll"],"Mozilla Corporation":["libssp-0.dll","libotr.dll","thunderbird.exe","xul.dll","rnp.dll","nss3.dll","nssckbi.dll","freebl3.dll","mozglue.dll","softokn3.dll","lgpllibs.dll"],"National Instruments Corporation":["nimdnsResponder.dll","nimdnsNSP.dll"]} Notes: Has dual GPUs. GPU #2: AdapterVendorID2: 0x10de, AdapterDeviceID2: 0x1c20, AdapterSubsysID2: 08251028, AdapterDriverVersion2: 27.21.14.6231FP(D00-L1000-W00001000-T000) DWrite? DWrite+ WR? WR+ ProductID: {3550f703-e582-4d05-9a08-453d09bdfdc6} ProductName: Thunderbird ReleaseChannel: release SafeMode: 0 SecondsSinceLastCrash: 733 StartupCrash: 0 StartupTime: 1668387706 SubmittedFrom: Client SystemMemoryUsePercentage: 82 TelemetryEnvironment: {"build":{"applicationId":"{3550f703-e582-4d05-9a08-453d09bdfdc6}","applicationName":"Thunderbird","architecture":"x86-64","buildId":"20221101185644","version":"102.4.2","vendor":null,"displayVersion":"102.4.2","platformVersion":"102.4.0","xpcomAbi":"x86_64-msvc","updaterAvailable":true},"partner":{"distributionId":null,"distributionVersion":null,"partnerId":null,"distributor":null,"distributorChannel":null,"partnerNames":[]},"system":{"memoryMB":16178,"virtualMaxMB":134217728,"cpu":{"extensions":["hasMMX","hasSSE","hasSSE2","hasSSE3","hasSSSE3","hasSSE4_1","hasSSE4_2","hasAVX","hasAVX2","hasAES"]},"os":{"name":"Windows_NT","version":"10.0","locale":"en-US","servicePackMajor":0,"servicePackMinor":0,"windowsBuildNumber":19045,"windowsUBR":2251},"hdd":{"profile":{"model":null,"revision":null,"type":null},"binary":{"model":null,"revision":null,"type":null},"system":{"model":null,"revision":null,"type":null}},"gfx":{"D2DEnabled":false,"DWriteEnabled":true,"ContentBackend":"Skia","Headless":false,"EmbeddedInFirefoxReality":false,"adapters":[{"description":"Intel(R) UHD Graphics 630","vendorID":"0x8086","deviceID":"0x3e9b","subsysID":"08251028","RAM":0,"driver":"igdumdim64 igd10iumd64 igd10iumd64 igd12umd64 igdumdim32 igd10iumd32 igd10iumd32 igd12umd32","driverVendor":null,"driverVersion":"31.0.101.2114","driverDate":"8-24-2022","GPUActive":true},{"description":"NVIDIA GeForce GTX 1060 with Max-Q Design","vendorID":"0x10de","deviceID":"0x1c20","subsysID":"08251028","RAM":6144,"driver":"C:\\WINDOWS\\System32\\DriverStore\\FileRepository\\nvdm.inf_amd64_54c680c07b6d4e2e\\nvldumdx.dll,C:\\WINDOWS\\System32\\DriverStore\\FileRepository\\nvdm.inf_amd64_54c680c07b6d4e2e\\nvldumdx.dll,C:\\WINDOWS\\System32\\DriverStore\\FileRepository\\nvdm.inf_amd64_54c680c07b6d4e2e\\nvldumdx.dll,C:\\WINDOWS\\System32\\DriverStore\\FileRepository\\nvdm.inf_amd64_54c680c07b6d4e2e\\nvldumdx.dll C:\\WINDOWS\\System32\\DriverStore\\FileRepository\\nvdm.inf_amd64_54c680c07b6d4e2e\\nvldumd.dll,C:\\WINDOWS\\System32\\DriverStore\\FileRepository\\nvdm.inf_amd64_54c680c07b6d4e2e\\nvldumd.dll,C:\\WINDOWS\\System32\\DriverStore\\FileRepository\\nvdm.inf_amd64_54c680c07b6d4e2e\\nvldumd.dll,C:\\WINDOWS\\System32\\DriverStore\\FileRepository\\nvdm.inf_amd64_54c680c07b6d4e2e\\nvldumd.dll","driverVendor":null,"driverVersion":"27.21.14.6231","driverDate":"4-8-2021","GPUActive":false}],"monitors":[{"screenWidth":1920,"screenHeight":1080,"refreshRate":60,"pseudoDisplay":false}],"features":{"compositor":"none","hwCompositing":{"status":"available"},"gpuProcess":{"status":"available"},"wrQualified":{"status":"available"},"webrender":{"status":"available"},"wrCompositor":{"status":"available"},"wrSoftware":{"status":"available"},"openglCompositing":{"status":"unused"},"omtp":{"status":"unused"},"d3d11":{"status":"available","version":0,"warp":false,"textureSharing":false,"blocklisted":false},"d2d":{"status":"available","version":"1.1"}}},"appleModelId":null,"hasWinPackageId":false,"sec":{"antivirus":["Bitdefender Antivirus","Malwarebytes"],"antispyware":null,"firewall":["Windows Firewall"]}},"settings":{"blocklistEnabled":true,"e10sEnabled":true,"e10sMultiProcesses":8,"fissionEnabled":true,"telemetryEnabled":false,"locale":"en-US","intl":{},"update":{"channel":"release","enabled":true},"userPrefs":{"browser.cache.disk.capacity":307200,"browser.search.region":"PH","general.config.filename":"<set>","network.trr.strict_native_fallback":false,"widget.content.allow-gtk-dark-theme":false,"widget.content.gtk-high-contrast.enabled":true},"sandbox":{"effectiveContentProcessLevel":1,"contentWin32kLockdownState":15},"launcherProcessState":0,"addonCompatibilityCheckEnabled":true,"isDefaultBrowser":null},"profile":{}} Throttleable: 1 TotalPageFile: 29849055232 TotalPhysicalMemory: 16964153344 TotalVirtualMemory: 140737488224256 URL: UptimeTS: 96.3183 User32BeforeBlocklist: 1 Version: 102.4.2 Winsock_LSP: AF_UNIX : 2 : 1 : 1 : 0 : 0x20026 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : a00943d9-9c2e-4633-9b59-0057a3160994

Hyper-V RAW : 2 : 34 : 1 : 1 : 0x20026 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 1234191b-4bf7-4ca7-86e0-dfd7c32b5445 
MSAFD Tcpip [TCP/IP] : 2 : 2 : 1 : 6 : 0x20066 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : e70f1aa0-ab8b-11cf-8ca3-00805f48a192 
MSAFD Tcpip [UDP/IP] : 2 : 2 : 2 : 17 : 0x20609 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : e70f1aa0-ab8b-11cf-8ca3-00805f48a192 
MSAFD Tcpip [RAW/IP] : 2 : 2 : 3 : 0 : 0x20609 : 0xc : %SystemRoot%\system32\mswsock.dll :  : e70f1aa0-ab8b-11cf-8ca3-00805f48a192 
MSAFD Tcpip [TCP/IPv6] : 2 : 23 : 1 : 6 : 0x20066 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : f9eab0c0-26d4-11d0-bbbf-00aa006c34e4 
MSAFD Tcpip [UDP/IPv6] : 2 : 23 : 2 : 17 : 0x20609 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : f9eab0c0-26d4-11d0-bbbf-00aa006c34e4 
MSAFD Tcpip [RAW/IPv6] : 2 : 23 : 3 : 0 : 0x20609 : 0xc : %SystemRoot%\system32\mswsock.dll :  : f9eab0c0-26d4-11d0-bbbf-00aa006c34e4 
RSVP TCPv6 Service Provider : 2 : 23 : 1 : 6 : 0x22066 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9d60a9e0-337a-11d0-bd88-0000c082e69a 
RSVP TCP Service Provider : 2 : 2 : 1 : 6 : 0x22066 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9d60a9e0-337a-11d0-bd88-0000c082e69a 
RSVP UDPv6 Service Provider : 2 : 23 : 2 : 17 : 0x22609 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9d60a9e0-337a-11d0-bd88-0000c082e69a 
RSVP UDP Service Provider : 2 : 2 : 2 : 17 : 0x22609 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9d60a9e0-337a-11d0-bd88-0000c082e69a 
MSAFD L2CAP [Bluetooth] : 2 : 32 : 1 : 256 : 0x20006 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9fc48064-7298-43e4-b7bd-181f2089792a 
MSAFD RfComm [Bluetooth] : 2 : 32 : 1 : 3 : 0x20026 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9fc48064-7298-43e4-b7bd-181f2089792a

useragent_locale: en-US

This report also contains technical information about the state of the application when it crashed.

I have just updated the latest Thunderbird but every time I open it, it just crashes? Is this just a me or a general problem. I am running Ubuntu 22.04. How can I go back to previous version? Hope you can help? Chris

I updated Thunderbird from 91.13.1 to 102.6.1.

All Addons are disabled/uninstalled. iMAP account and SMTP.

Normal Mode: I can send and receive if I do not check "save password". If I do try and save pwd it takes a long time but finally does refresh iMAP folders. No pwds are listed in the pwd manager. If I try and send and save the pwd it waits a long time and fails to send (connection failure) If I try and send and enter pwd without saving it it works fine.

Troubleshooting (TS) mode: Works perfectly I enter the password for iMAP and for sending SMTP it sends and receives quickly and I can see the pwd listed in pwd manager.

Restarting TB in normal mode after Troubleshooting mode and pwd manager list is empty.

I tried copying logins.json after it had saved pwd in TS mode and replacing it after normal mode no luck.

I tried with firewall on/off and antivirus on/off

Thanks for reading

Thunderbird 102.7.0, 64-bit, Windows 10.

I just fell over this today but it may have been around for a while.

I have lots of email accounts. It was great when TB starting properly supporting a per-account (outbound) SMTP server, however, this seems to have newly broken. I fell over it today, but I don't reboot things for ages so I cannot pinpoint the start.

Here's the issue.

I have accounts on many mail servers, many on the same (mainly att.net, and gmail.com, as it happens).

Each one of them, to send mail, wants me to log in with an individual sending address. Fair enough. This used to work just fine.

However, suddenly, just the att.net addresses are broken. What *seems* to be happening is that the same, single login address is being used for all N accounts. Naturally, this breaks when the login address doesn't match the one on the From: line. So I have to futz around, fiddle around, and so on, and then things work. (I.E. I change the TB settings so that the outbound SMTP auth login matches the From: line, have to re-enter the password, and only then will the message be sent.) So if I have two accounts, x@att.net and y@att.net, only one of them (at a time) "works" with att.net - it's whatever I successfully used last. If I sent mail from x@, this address is being used (and it's in the account settings field. over-riding what was there before), even if I send mail from y@. Or z@. Etc. If I change the SMTP auth address to y@, then that account works perfectly, but x@ doesn't. And so on.

Now the weird part is this: my Gmail addresses still work perfectly. I can send from all of them without changing a thing.

The only thing I can see is that Gmail is set up to use oAuth, and att.net is set up to use 'normal password' (via SSL, so I'm not that bothered about security).

Did I unknowingly manage to break something? Is there a new tweak? Help!

Jonathan