What are the server settings required by Apple?

having read about Logjam, I downloaded the "Disable DHE" add-on and this fails to fix the problem.

What made you think the Apple server is (still) vulnerable to the Logjam attack? Don't mess with security settings unless you know exactly what you're doing.

Have you checked with Apple if there is a problem with their servers?

Please post your Troubleshooting Information. At the top right of the Thunderbird window, click the menu button , then select Help > Troubleshooting Information. Press the Copy text to clipboard button and paste the information into your reply.

Apple yesterday confirmed no problems with their servers and that I should call yourselves, but they and I could not find your phone number on the web.

Mozilla support website says, there maybe Logjam problems with their new update where sites still use SSL/TLS, which is what Apple use.

The Apple settings required as taken from their website are:-

IMAP information for the incoming mail server •Server name: imap.mail.me.com •SSL Required: Yes If you see an error message when using SSL, try using TLS instead. •Port: 993 •Username: This is usually the name part of your iCloud email address (for example, emilyparker, not emilyparker@icloud.com). If your email client can't connect to iCloud using just the name part of your iCloud email address, try using the full address. •Password: Your iCloud password

SMTP information for the outgoing mail server •Server name: smtp.mail.me.com •SSL Required: Yes If you see an error message when using SSL, try using TLS or STARTTLS instead. •Port: 587 •SMTP Authentication Required: Yes •Username: Your full iCloud email address (for example, emilyparker@icloud.com, not emilyparker) •Password: Your iCloud password

I have followed this to the letter and as I stated before, everything worked perfectly until around 25 March.

Please Note: my Windows software also updates automatically.

Here is the Troubleshooting info. Application Basics Name Thunderbird Version 38.7.1 User Agent Mozilla/5.0 (Windows NT 10.0; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.7.1 Profile Folder Show Folder (Local drive) Application Build ID 20160323055719 Enabled Plugins about:plugins

Build Configuration about:buildconfig

Memory Use about:memory

Mail and News Accounts ID Incoming server Outgoing servers Name Connection security Authentication method Name Connection security Authentication method Default? account1 (imap) imap.mail.me.com:993 SSL passwordCleartext smtp.mail.me.com:587 alwaysSTARTTLS passwordCleartext true account2 (none) Local Folders plain passwordCleartext account3 (pop3) pop.which.net:110 alwaysSTARTTLS passwordCleartext smtp.mail.me.com:587 alwaysSTARTTLS passwordCleartext true account4 (pop3) mail.which.net:995 SSL passwordCleartext smtp.mail.me.com:587 alwaysSTARTTLS passwordCleartext true account5 (pop3) mail.which.net:995 SSL passwordCleartext smtp.mail.me.com:587 alwaysSTARTTLS passwordCleartext true account6 (pop3) mail.which.net:995 SSL passwordCleartext smtp.mail.me.com:587 alwaysSTARTTLS passwordCleartext true account8 (imap) imap.mail.yahoo.com:993 SSL passwordCleartext smtp.mail.yahoo.com:465 SSL passwordCleartext true account9 (imap) imap-mail.outlook.com:993 SSL passwordCleartext smtp-mail.outlook.com:587 alwaysSTARTTLS passwordCleartext true account10 (imap) imap.gmail.com:993 SSL passwordCleartext smtp.gmail.com:465 SSL OAuth2 true Crash Reports Report ID Submitted Extensions Name Version Enabled ID Disable DHE 0.1.2 true 5aa55fd5-6e61-4896-b186-fdc6f298ec92@mozilla Lightning 4.0.7.1 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 38.7.1 font.name.monospace.el 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.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.x-cyrillic Cambria font.name.serif.x-unicode Cambria font.name.serif.x-western Cambria font.size.fixed.el 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.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 1445682933 mailnews.database.global.datastore.id c5a7e504-6375-45a4-ab96-db085a4b7f2 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 1459181532 places.history.expiration.transient_current_max_pages 104858 plugin.importedState true print.printer_HP_Officejet_Pro_8500_A910_(Network).print_bgcolor false print.printer_HP_Officejet_Pro_8500_A910_(Network).print_bgimages false print.printer_HP_Officejet_Pro_8500_A910_(Network).print_colorspace print.printer_HP_Officejet_Pro_8500_A910_(Network).print_command print.printer_HP_Officejet_Pro_8500_A910_(Network).print_downloadfonts false print.printer_HP_Officejet_Pro_8500_A910_(Network).print_duplex -437918235 print.printer_HP_Officejet_Pro_8500_A910_(Network).print_edge_bottom 0 print.printer_HP_Officejet_Pro_8500_A910_(Network).print_edge_left 0 print.printer_HP_Officejet_Pro_8500_A910_(Network).print_edge_right 0 print.printer_HP_Officejet_Pro_8500_A910_(Network).print_edge_top 0 print.printer_HP_Officejet_Pro_8500_A910_(Network).print_evenpages true print.printer_HP_Officejet_Pro_8500_A910_(Network).print_footercenter print.printer_HP_Officejet_Pro_8500_A910_(Network).print_footerleft &PT print.printer_HP_Officejet_Pro_8500_A910_(Network).print_footerright &D print.printer_HP_Officejet_Pro_8500_A910_(Network).print_headercenter print.printer_HP_Officejet_Pro_8500_A910_(Network).print_headerleft &T print.printer_HP_Officejet_Pro_8500_A910_(Network).print_headerright &U print.printer_HP_Officejet_Pro_8500_A910_(Network).print_in_color true print.printer_HP_Officejet_Pro_8500_A910_(Network).print_margin_bottom 0.5 print.printer_HP_Officejet_Pro_8500_A910_(Network).print_margin_left 0.5 print.printer_HP_Officejet_Pro_8500_A910_(Network).print_margin_right 0.5 print.printer_HP_Officejet_Pro_8500_A910_(Network).print_margin_top 0.5 print.printer_HP_Officejet_Pro_8500_A910_(Network).print_oddpages true print.printer_HP_Officejet_Pro_8500_A910_(Network).print_orientation 0 print.printer_HP_Officejet_Pro_8500_A910_(Network).print_page_delay 50 print.printer_HP_Officejet_Pro_8500_A910_(Network).print_paper_data 9 print.printer_HP_Officejet_Pro_8500_A910_(Network).print_paper_height 11.00 print.printer_HP_Officejet_Pro_8500_A910_(Network).print_paper_name print.printer_HP_Officejet_Pro_8500_A910_(Network).print_paper_size_type 0 print.printer_HP_Officejet_Pro_8500_A910_(Network).print_paper_size_unit 1 print.printer_HP_Officejet_Pro_8500_A910_(Network).print_paper_width 8.50 print.printer_HP_Officejet_Pro_8500_A910_(Network).print_plex_name print.printer_HP_Officejet_Pro_8500_A910_(Network).print_resolution -437918235 print.printer_HP_Officejet_Pro_8500_A910_(Network).print_resolution_name print.printer_HP_Officejet_Pro_8500_A910_(Network).print_reversed false print.printer_HP_Officejet_Pro_8500_A910_(Network).print_scaling 0.75 print.printer_HP_Officejet_Pro_8500_A910_(Network).print_shrink_to_fit false print.printer_HP_Officejet_Pro_8500_A910_(Network).print_to_file false print.printer_HP_Officejet_Pro_8500_A910_(Network).print_unwriteable_margin_bottom 0 print.printer_HP_Officejet_Pro_8500_A910_(Network).print_unwriteable_margin_left 0 print.printer_HP_Officejet_Pro_8500_A910_(Network).print_unwriteable_margin_right 0 print.printer_HP_Officejet_Pro_8500_A910_(Network).print_unwriteable_margin_top 0 security.ssl3.dhe_dss_aes_128_sha false security.ssl3.dhe_rsa_aes_128_sha false security.ssl3.dhe_rsa_aes_256_sha false security.ssl3.dhe_rsa_des_ede3_sha false Graphics Adapter Description Intel(R) HD Graphics 4000 Vendor ID 0x8086 Device ID 0x0166 Adapter RAM Unknown Adapter Drivers igdumdim64 igd10iumd64 igd10iumd64 igdumdim32 igd10iumd32 igd10iumd32 Driver Version 10.18.10.4276 Driver Date 8-17-2015 Adapter Description (GPU #2) NVIDIA GeForce GT 735M Vendor ID (GPU #2) 0x10de Device ID (GPU #2) 0x1291 Adapter RAM (GPU #2) 2048 Adapter Drivers (GPU #2) nvd3dumx,nvwgf2umx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um,nvwgf2um Driver Version (GPU #2) 10.18.13.5362 Driver Date (GPU #2) 7-22-2015 Direct2D Enabled false DirectWrite Enabled false (10.0.10586.0) ClearType Parameters ClearType parameters not found WebGL Renderer false GPU Accelerated Windows 0 AzureCanvasBackend skia AzureSkiaAccelerated 0 AzureFallbackCanvasBackend cairo AzureContentBackend cairo JavaScript Incremental GC 1 Accessibility Activated 1 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

Mozilla support website says, there maybe Logjam problems with their new update where sites still use SSL/TLS, which is what Apple use.

I'd hope that Apple still use TLS for their servers. The problem with Logjam was a certain configuration option with SSL/TLS, not using it per se. I'd expect Apple to have this fixed long time ago.

account1 (imap) imap.mail.me.com:993 SSL passwordCleartext

Your IMAP server setting looks good.

Thunderbird has become unable to login (using the correct password) to my Apple email account to download my emails,

Are you saying you can still send messages via your Apple email account?

I have followed this to the letter and as I stated before, everything worked perfectly until around 25 March.

I can believe that, hence the question if there are any known problems with Apple servers.

Are you running any kind of anti-virus/security software?

Can you try the following from a shell?

openssl s_client -connect imap.mail.me.com:993
Ctrl-C

Please post the result.

Do you see anything relevant in the error console? Press Ctrl+Shift+J to bring up the error console.

Apple yesterday confirmed no problems with their servers and that I should call yourselves, but they and I could not find your phone number on the web.

Thunderbird is a community project, not a commercial product. There simply aren't enough resources and budget to maintain a help desk with phone support. Hence no phone number to call for support.