Hi, I have been using Thunderbird for years to send emails, both to group lists and to individual addressees. Suddenly, many of my outgoing emails have been blocked and marked as undeliverable. I am using opensuse 12.3, and 13.1 both with the same problem. I am using Thunderbird 17.0.7 from opensuse. I am using KDE 4.10.5 release 1 in opensuse 12.3. I have tried to do some investigation of this problem, and found that in the Thunderbird Help menu> Troubleshooting Information, there is a section that says that my mail is being blacklisted because Mesa is out of date, and to update it to version 7.10.3 or newer. Yet my current Mesa is 9.0.2 I don't know if this is causing the mail to be undeliveralble or if this is a separate problem. I have included most of the troubleshooting information below: Application Basics Name Thunderbird Version 17.0.7 User Agent Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130620 Thunderbird/17.0.7 Profile Directory Open Directory (Local drive) Application Build ID 2013062000 Enabled Plugins about:plugins Build Configuration about:buildconfig Crash Reports about:crashes Memory Use about:memory Mail and News Accounts ID Incoming servers Extensions Name Version Enabled ID Test Pilot for Thunderbird 1.3.9 true tbtestpilot@labs.mozilla.com Important Modified Preferences Name Value 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 17.0.7 gfx.blacklist.suggested-driver-version Mesa 7.10.3 mailnews.database.global.datastore.id d01084c3-4126-4847-9aa7-35a39f71dfc mail.openMessageBehavior.version 1 network.cookie.prefsMigrated true places.database.lastMaintenance 1374455498 places.history.expiration.transient_current_max_pages 102908 places.history.expiration.transient_optimal_database_size 164656250 Graphics Adapter Description Intel Open Source Technology Center -- Mesa DRI Mobile Intel® GM45 Express Chipset Vendor ID nter Device ID set Driver Version 2.1 Mesa 9.0.2 WebGL Renderer Blocked for your graphics driver version. Try updating your graphics driver to version Mesa 7.10.3 or newer. GPU Accelerated Windows 0/1 Anyone have an idea about what is going on and how to fix this problem? Thanks, Mark -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org