Own mailadress unknown?

[jockel->]

Hi,

I lately experience strange things with

• Enigmail (2.1.6 (20200328-0946))
• TB 68.7.0 (64-Bit)
• Linux Mint 19.3 Cinnamon

inxi -F
System:
  Host: user Kernel: 4.15.0-96-generic x86_64 bits: 64 
  Desktop: Cinnamon 4.4.8 Distro: Linux Mint 19.3 Tricia 
Machine:
  Type: Desktop Mobo: ASUSTeK model: P8B75-M LE v: Rev X.0x 
  serial: <root required> BIOS: American Megatrends v: 0703 date: 08/24/2012 
CPU:
  Topology: Quad Core model: Intel Core i5-3470 bits: 64 type: MCP 
  L2 cache: 6144 KiB 
  Speed: 1887 MHz min/max: 1600/3600 MHz Core speeds (MHz): 1: 1676 2: 1647 
  3: 1680 4: 1622 
Graphics:
  Device-1: NVIDIA GF119 [GeForce GT 610] driver: nvidia v: 390.116 
  Display: x11 server: X.Org 1.19.6 driver: nvidia 
  unloaded: fbdev,modesetting,nouveau,vesa resolution: 1920x1080~60Hz 
  OpenGL: renderer: GeForce GT 610/PCIe/SSE2 v: 4.6.0 NVIDIA 390.116 
Audio:
  Device-1: Intel 7 Series/C216 Family High Definition Audio 
  driver: snd_hda_intel 
  Device-2: NVIDIA GF119 HDMI Audio driver: snd_hda_intel 
  Sound Server: ALSA v: k4.15.0-96-generic 
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet 
  driver: r8169 
  IF: enp3s0 state: up speed: 1000 Mbps duplex: full mac: 08:60:6e:68:06:51 
Drives:
  Local Storage: total: 698.65 GiB used: 479.69 GiB (68.7%) 
  ID-1: /dev/sda vendor: Samsung model: SSD 840 Series size: 232.89 GiB 
  ID-2: /dev/sdb vendor: Samsung model: HD502HI size: 465.76 GiB 
Partition:
  ID-1: / size: 224.47 GiB used: 80.17 GiB (35.7%) fs: ext4 dev: /dev/sda1 
  ID-2: /home size: 458.32 GiB used: 399.53 GiB (87.2%) fs: ext4 
  dev: /dev/sdb1 
  ID-3: swap-1 size: 4.71 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/dm-0 
Sensors:
  System Temperatures: cpu: 29.8 C mobo: 27.8 C gpu: nvidia temp: 46 C 
  Fan Speeds (RPM): cpu: 0 gpu: nvidia fan: 40% 
Info:
  Processes: 243 Uptime: 2h 21m Memory: 7.73 GiB used: 2.25 GiB (29.2%) 
  Shell: bash inxi: 3.0.32 

Today I meant to reply encryptet to a wellknown correspondent and found an answer of Enigmail that surprised me: It says that the sender(!)-adress be invalid (see attached).
So, there is no way to send any encryptet msgs anymore.

I tried to send msgs to myself with the following results:

• unencrypted and unsigned: ok
• unencrypted and signed: ok
• encrypted and signed: would not send

Do you have any clues where to turn to?

Regards

j->

[Rob]

I tried to send msgs to myself with the following results:
/unencrypted and unsigned: ok
/ unencrypted and signed: ok
* encrypted and signed: would not send

I would start by checking to see if your encryption subkey has expired.
You can discover this by "gpg --edit-key [your key ID]". Look for a
section like this:

sec rsa3072/1DCBDC01B44427C7
created: 2015-07-16 expires: never usage: SC
trust: ultimate validity: ultimate
ssb rsa3072/DC0F82625FA6AADE
created: 2015-07-16 expires: never usage: E
ssb ed25519/A83CAE94D3DC3873
created: 2017-04-05 expires: never usage: S
ssb cv25519/AA24CC81B8AED08B
created: 2017-04-05 expires: never usage: E

Only look at entries that have an "E" in the final column. (This
denotes encryption subkeys.) For instance, looking at only my
encryption subkeys, you'd get:

ssb rsa3072/DC0F82625FA6AADE
created: 2015-07-16 expires: never usage: E
ssb cv25519/AA24CC81B8AED08B
created: 2017-04-05 expires: never usage: E

Check to see if your subkeys have expired. That's where I'd first look.

[jockel->]

Hi Rob,

no, it hasn't.
There are just two, SCA and E, and both expire at 2023-01-27.
Still a while.
Nevertheless there has another key expired on 2020-04-02, but it is only related to this account through my RL person.

My mail adress is as allright as it has always been, no changes.

[Patrick Brunschwig]

Check if there is a per-recipient rule that points to a wrong key.

[jockel->]

How to check rules for a recipient?

[Patrick Brunschwig]

I just checked the error message. It says that the sender email address is invalid. It does not say that the key is invalid.

And the dialog is not an Enigmail dialog - that's a Thunderbird dialog.

Please attach a debugging log file, and I will check if this is really an Enigmail error.
https://www.enigmail.net/index.php/en/faq-en?view=topic&id=15

[jockel->]

Strangely comes first: At 12:13 I sent an automatically encrypted msg to the same recipient from the very account - and it worked.
So, I can't reproduce the problem (for good).
Seems to me that there had been some TB error which got fixed by way of the meanwhile issued updates somehow. Just can guess.

Thank you.