Since today I can neither send messages nor store drafts. Restarting thunderbird does not help. No error message is displayed. Receiving messages works fine.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: thunderbird 1:52.9.1+build3-0ubuntu0.18.04.1
ProcVersionSignature: Ubuntu 4.2.0-19.23~14.04.1-generic 4.2.6
Uname: Linux 4.2.0-19-generic x86_64
AddonCompatCheckDisabled: False
ApportVersion: 2.20.9-0ubuntu7.4
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: pia 2804 F.... pulseaudio
/dev/snd/controlC1: pia 2804 F.... pulseaudio
BuildID: 20180710084133
Channel: Unavailable
Date: Mon Oct 15 18:42:48 2018
Extensions: extensions.sqlite corrupt or missing
ForcedLayersAccel: False
IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
InstallationDate: Installed on 2015-11-05 (1075 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
IpRoute:
default via 10.75.15.254 dev eth0 proto dhcp metric 100
10.75.0.0/20 dev eth0 proto kernel scope link src 10.75.0.25 metric 100
169.254.0.0/16 dev eth0 scope link metric 1000
Locales: extensions.sqlite corrupt or missing
MostRecentCrashID: bp-d23c5e7f-dfca-4ae1-9026-2e6b30180601
Plugins: Shockwave Flash - /usr/lib/gnash/libgnashplugin.so (browser-plugin-gnash)
PrefErrors: 'utf-8' codec can't decode byte 0xe4 in position 928: invalid continuation byte
Prefs:
javascript.options.showInConsole: true ([Profile]/<email address hidden>/defaults/preferences/debug.js)
javascript.options.strict: true ([Profile]/<email address hidden>/defaults/preferences/debug.js)
Profiles: Profile0 (Default) - LastVersion=52.9.1/20180710084133
PulseList:
Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions: browser-plugin-gnash 0.8.11~git20160608-1.4
RunningIncompatibleAddons: False
SourcePackage: thunderbird
Themes: extensions.sqlite corrupt or missing
UpgradeStatus: Upgraded to bionic on 2018-05-24 (144 days ago)
dmi.bios.date: 04/15/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 4.6.5
dmi.board.asset.tag: Tag 12345
dmi.board.name: W230SS
dmi.board.vendor: Notebook
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: Notebook
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd04/15/2014:svnNotebook:pnW230SS:pvrNotApplicable:rvnNotebook:rnW230SS:rvrNotApplicable:cvnNotebook:ct9:cvrN/A:
dmi.product.name: W230SS
dmi.product.version: Not Applicable
dmi.sys.vendor: Notebook
After debugging a lot I found that the problem is caused by the Add-on "Subject Manager 1.1.1". After disabling this plug-in sending works fine again.