Please post the following information to check server settings.

In Thunderbird

• 'Help' > 'Troubleshooting Information'
• Do Not select checkbox' include account names'
• Click on 'Copy text to clipboard' button

• In this forum question, right click in a 'Post a Reply' text box and select 'Paste'

This will insert all the information. But some is not required so you can remove all information on fonts and printers but nothing else.

note 'Help' can be located in two places see images as guide.

Toad-Hall. Many thanks. I hope I have done this correctly. Your help is very much appreciated. Sheila.

 Application Basics

   Name: Thunderbird
   Version: 52.7.0
   User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0
   Profile Folder: Open Folder

             (Local drive)
   Application Build ID: 20180322145026
   Enabled Plugins: about:plugins
   Build Configuration: about:buildconfig
   Memory Use: about:memory
   Profiles: about:profiles

 Mail and News Accounts
   account2:
     INCOMING: account2, , (none) Local Folders, plain, passwordCleartext

   account3:
     INCOMING: account3, , (imap) imap.tiscali.co.uk:143, alwaysSTARTTLS, passwordEncrypted
     OUTGOING: , smtp.tiscali.co.uk:587, alwaysSTARTTLS, passwordCleartext, true

   account4:
     INCOMING: account4, , (imap) imap.tiscali.co.uk:143, alwaysSTARTTLS, passwordEncrypted
     OUTGOING: , smtp.tiscali.co.uk:587, plain, passwordCleartext, true

 Crash Reports
   https://crash-stats.mozilla.com/report/index/bp-ad8808e4-f025-4091-8515-0afb90180412 (12/04/2018)
   https://crash-stats.mozilla.com/report/index/bp-06903c0d-8e92-404f-bfd1-174d40180412 (12/04/2018)
   https://crash-stats.mozilla.com/report/index/bp-def6d6fd-8322-4fc4-a6e6-d21280180324 (24/03/2018)

 Extensions
   BullGuard Antivirus, 18.0, true, {0E810812-F4BB-4309-942A-755587587A5E}
   BullGuard Backup, 18.0, true, {380AE6CB-09B9-4373-B360-D01C2462A6E7}

 Important Modified Preferences

   Name: Value

     accessibility.lastLoadDate: 1519750267
     browser.cache.disk.capacity: 358400
     browser.cache.disk.filesystem_reported: 1
     extensions.lastAppVersion: 52.7.0
     
     
     
     mail.openMessageBehavior.version: 1
     mail.winsearch.firstRunDone: true
     mailnews.database.global.datastore.id: 0765e91e-be07-4af1-a7b5-32d7f4521d3
     mailnews.database.global.views.conversation.columns: {"threadCol":{"visible":true,"ordinal":"1"},"flaggedCol":{"visible":true,"ordinal":"3"},"attachmentCol":{"visible":false…
     mailnews.database.global.views.global.columns: {"threadCol":{"visible":true,"ordinal":"1"},"flaggedCol":{"visible":true,"ordinal":"3"},"attachmentCol":{"visible":false…
     media.gmp.storage.version.observed: 1
     network.cookie.prefsMigrated: true
     network.predictor.cleaned-up: true
     places.database.lastMaintenance: 1523034390
     places.history.expiration.transient_current_max_pages: 122334
     

     security.sandbox.content.tempDirSuffix: {b29c2dd8-938c-4dce-88c0-96d4c6cb2d8d}

 Graphics

     GPU #1
     Description: AMD Radeon R7 Graphics
     Vendor ID: 0x1002
     Device ID: 0x9874
     RAM: 512
     Drivers: aticfx64 aticfx64 aticfx64 amdxc64 aticfx32 aticfx32 aticfx32 amdxc32 atiumd64 atidxx64 atidxx64 atiumdag atidxx32 atidxx32 atiumdva atiumd6a atitmm64
     Driver Version: 22.19.128.3
     Driver Date: 5-5-2017

     Features
     Direct2D: false
     DirectWrite: true (10.0.16299.334)
     WebGL Renderer: Google Inc. -- ANGLE (AMD Radeon R7 Graphics Direct3D9Ex vs_3_0 ps_3_0) -- OpenGL ES 2.0 (ANGLE 2.1.0.2a250c8a0e15)

     AzureCanvasBackend: skia
     AzureCanvasAccelerated: 0
     AzureFallbackCanvasBackend: cairo
     AzureContentBackend: skia

 JavaScript

 Incremental GC: 1

 Accessibility

   Activated: 0
   Prevent Accessibility: 0

 Library Versions

     Expected minimum version
     Version in use

     NSPR
     4.13.1
     4.13.1

     NSS
     3.28.6
     3.28.6

     NSS Util
     3.28.6
     3.28.6

     NSS SSL
     3.28.6
     3.28.6

     NSS S/MIME
     3.28.6
     3.28.6

Thanks for info. re: INCOMING: account3, , (imap) imap.tiscali.co.uk:143, alwaysSTARTTLS, passwordEncrypted re: INCOMING: account4, , (imap) imap.tiscali.co.uk:143, alwaysSTARTTLS, passwordEncrypted

these are not the recommended settings for imap tiscali.co.uk see info: https://help2.talktalk.co.uk/email-settings-imap-pop3

Access the Account Settings and make the following modifications.

• Right click on mail account name in Folder Pane and select 'Settings'
• Select 'Server Settings'
• Port : 993
• Connection Security: SSL/TLS
• Authentication method: Normal Password

then select 'Server Settings' for the other mail account. Repeat the above to modify settings.

• Click on OK

Exit thunderbird Wait a few moments for background processes to complete. Start Thunderbird.

Fingers crossed it has not demanded a password. It seems to be working OK I deleted 2nd e mail address as it is never used. This is what it now looks like on the info you first requested...does that now look right. Many thanks Toad -Hall for your time. Cheers Sheila.

 Application Basics

   Name: Thunderbird
   Version: 52.7.0
   User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0
   Profile Folder: Open Folder

             (Local drive)
   Application Build ID: 20180322145026
   Enabled Plugins: about:plugins
   Build Configuration: about:buildconfig
   Memory Use: about:memory
   Profiles: about:profiles

 Mail and News Accounts
   account2:
     INCOMING: account2, , (none) Local Folders, plain, passwordCleartext

   account4:
     INCOMING: account4, , (imap) imap.tiscali.co.uk:993, SSL, passwordCleartext
     OUTGOING: , smtp.tiscali.co.uk:587, plain, passwordCleartext, true

 Crash Reports
   https://crash-stats.mozilla.com/report/index/bp-428d3ef3-ff3e-4b26-8837-f941c0180413 (13/04/2018)
   https://crash-stats.mozilla.com/report/index/bp-ad8808e4-f025-4091-8515-0afb90180412 (12/04/2018)
   https://crash-stats.mozilla.com/report/index/bp-06903c0d-8e92-404f-bfd1-174d40180412 (12/04/2018)
   https://crash-stats.mozilla.com/report/index/bp-def6d6fd-8322-4fc4-a6e6-d21280180324 (24/03/2018)

 Extensions
   BullGuard Antivirus, 18.0, true, {0E810812-F4BB-4309-942A-755587587A5E}
   BullGuard Backup, 18.0, true, {380AE6CB-09B9-4373-B360-D01C2462A6E7}

 Important Modified Preferences

   Name: Value

     accessibility.lastLoadDate: 1519750267
     browser.cache.disk.capacity: 358400
     browser.cache.disk.filesystem_reported: 1
     extensions.lastAppVersion: 52.7.0
    
     mail.openMessageBehavior.version: 1
     mail.winsearch.firstRunDone: true
     mailnews.database.global.datastore.id: 0765e91e-be07-4af1-a7b5-32d7f4521d3
     mailnews.database.global.views.conversation.columns: {"threadCol":{"visible":true,"ordinal":"1"},"flaggedCol":{"visible":true,"ordinal":"3"},"attachmentCol":{"visible":false…
     mailnews.database.global.views.global.columns: {"threadCol":{"visible":true,"ordinal":"1"},"flaggedCol":{"visible":true,"ordinal":"3"},"attachmentCol":{"visible":false…
     media.gmp.storage.version.observed: 1
     network.cookie.prefsMigrated: true
     network.predictor.cleaned-up: true
     places.database.lastMaintenance: 1523034390
     places.history.expiration.transient_current_max_pages: 122334
     

 Graphics

     GPU #1
     Description: AMD Radeon R7 Graphics
     Vendor ID: 0x1002
     Device ID: 0x9874
     RAM: 512
     Drivers: aticfx64 aticfx64 aticfx64 amdxc64 aticfx32 aticfx32 aticfx32 amdxc32 atiumd64 atidxx64 atidxx64 atiumdag atidxx32 atidxx32 atiumdva atiumd6a atitmm64
     Driver Version: 22.19.128.3
     Driver Date: 5-5-2017

     Features
     Direct2D: false
     DirectWrite: true (10.0.16299.334)
     WebGL Renderer: Google Inc. -- ANGLE (AMD Radeon R7 Graphics Direct3D9Ex vs_3_0 ps_3_0) -- OpenGL ES 2.0 (ANGLE 2.1.0.2a250c8a0e15)

     AzureCanvasBackend: skia
     AzureCanvasAccelerated: 0
     AzureFallbackCanvasBackend: cairo
     AzureContentBackend: skia

 JavaScript

 Incremental GC: 1

 Accessibility

   Activated: 0
   Prevent Accessibility: 0

 Library Versions

     Expected minimum version
     Version in use

     NSPR
     4.13.1
     4.13.1

     NSS
     3.28.6
     3.28.6

     NSS Util
     3.28.6
     3.28.6

     NSS SSL
     3.28.6
     3.28.6

     NSS S/MIME
     3.28.6
     3.28.6

Me again. Not yet right.Still demanding password. ALSO 2nd long standing problem.

E mails when I press send just sit there. Sending secure login . Log in to server imap .Tiscali co.uk failed. Enter password. There was an error saving the message to sent.retry. Copy failed. .................. Then I cannot send...cannot copy and paste and when I click out I lose message completely.

It is really cracking me up.

More help needed please. HELP.

re :OUTGOING: , smtp.tiscali.co.uk:587, plain, passwordCleartext, true

Access the Account Settings and make the following modifications.

• Right click on mail account name in Folder Pane and select 'Settings'

In left Pane go down to the bottom

• click on 'Outgoing server (SMTP)

It will show you the list of outgoing servers. There should only be the one as you removed other account.

• select the outgoing server
• click on 'Edit'

'Description' is a field name which allows you enter whatever you like to help identify that smtp server. You can edit if you want.

Check the following.

• Connection Security: STARTTLS
• Authentication Method: 'Normal Password'
• User Name: full email address - it must the same as the mail account email address.
• click on 'OK'
• click on 'OK'

Then check to see what is stored for passwords.

• 'Menu icon' > 'Options' > 'Options' > 'Security' > 'Passwords' tab

click on 'Saved Passwords' button Do you see two lines showing information? One for imap://mail account One for smtp://mail account

• If yes click on 'Show Passwords' button

Does the User Name show correct email address ? Is password correct? If not correct, right click on line and use 'Edit Password' option completely clear content and retype password

• click on 'Close'
• click on 'OK'

Exit thunderbird Wait a few moments for background processes to complete. Start Thunderbird.

re :'Menu icon' > 'Options' > 'Options' > 'Security' > 'Passwords' tab

If there are imap and smtp lines , so no passwords stored: when you are prompted for password

• Enter Password
• select checkbox 'Use Password Manager to remember this password'
• click on 'OK'

re :There was an error saving the message to sent

Check you have subscribed to see the server 'Sent' folder, which might be called 'Sent' or 'Sent Items' or 'Sent Mail' etc

• right click on mail account in Folder Pane and select 'Subscribe'

a list will appear

• select 'Sent' or 'Sent Items' or 'Sent Mail' depends upon what they call it.
• click on 'Subscribe'
• click on OK

Now check account settings to make sure you are using that folder.

• Right click on mail account name in Folder Pane and select 'Settings'
• select 'Copies & Folders'
• select 'Place a copy in'
• select 'Other' and choose the server 'Sent' folder (or what ever they called it) on the imap mail account.
• click on 'OK'

Toad-Hall..THANK YOU for last 3 what to do ... very clear, understandable help messages. Have done everything you have recommended. So far so good.

I just wish we had found you ages ago. This was happening on my last computer. Took it to a shop and he tried but didn't sort it. He said it was probably our slow broadband...but it is not that slow. I got so fed up with it I assumed it was my computers fault. So went and bought a new computer. Imagine my distress at all these problems starting up again. The support I paid for with new computer refuse to get involved in e mail issues.

All the time you have spent helping this technophobic, ignoramus is so appreciated. If ever you need help to id a plant ...then I am your woman!!!!! Thank you ...fingers crossed. warmest wishes. Sheila.

I

You had a few things just out of synch, but hopefully things should improve now you are using correct settings and everything is singing the same tune :)

Still working perfectly!!!!

Hurray.

Consider this problem solved.

I logged a similar problem about 3 hours ago but with more details. I tried all of the suggestions here with no effect. Finally, I reset everything, port 143 and password encripted, and it is now working again. As I put in my other post, this is a regular problem with tiscali and has been for me for more than 2 years. It usually returns without any action after an hour or 12. 2 hours ago in desperation I set up the same account on Microsoft mail and it self set and downloaded mail in less than 2 minutes but Thunderbird still wasn't working. I had exactly the same problem with Outlook 2000 which I was using until about 3 weeks ago. My only problem now is that, having deleted the mails from my Kindle and Mail, they are not there to download on Thunderbird. Is this progress? Back to POP for me.

Ronat42 re: My only problem now is that, having deleted the mails from my Kindle and Mail, they are not there to download on Thunderbird. If you were using imap mail accounts then emails are stored on server, so it does not matter whether you delete via webmail, Thunderbird or other email clients, other computers , phones etc, the email is deleted off the server and imap mail accounts only see remote view of server. If you use POP then make sure you select the option in Account Settings > Server Settings to 'Leave messages on server', else the server will auto delete off server when you download. This should then allow you to download to a second device or use server emails as a limited backup.

Thanks Toad-Hall, That is what I have always done, ever since I first used Outlook 2000. That has been my sole email system until the last Win 10 update has defeated even my sons' tricks to keep it running. The problem with the tiscali server seems to be causing several users problems. it may be that some don't even realise that there is a problem as it always comes back after anything up to 12 hours if left alone and it has been going on to a lesser extent for a year or 2 now. I know it affects Thunderbird and it used to knock out Outlook. It is always the same problem - password not recognised. The easiest response is to do nothing but twice in 25 hours is desperate. I have now set a new email address as ????@talktalk.net as these do not seem to be affected and monitoring the old one on Microsoft Mail as it doesn't seem to be affected along with TalkTalk emails. I suppose it is time I moved into the present day.