Cannot establish guaranteed end-to-end encryption

Mutual Help
1

For some reason I cannot establish an e2e connection between a hosted email account (on uber.space) – autocrypt is set to preferred – and nine.testrun

Delta Chat version

1.44

Expected behavior

chat

Actual behavior

Getting: cannot establish guaranteed end-to-end encryption

Steps to reproduce the problem

  1. scanned QR code of account 1 (hosted mail server on uber.space) w/ a testrun account
  2. send message
2

Looks like mails from uber.space email account are not DKIM-signed correctly. nine.testrun.org drops all mails not authenticated with DKIM.
You can test with https://www.learndmarc.com/ by sending a mail to the address they give you if DKIM checks pass. If not, it should be fixed on the uber.space side.

3

alright, checking w/ them maybe a setup issue on my end. Tried it with another host and it worked. Thanx.

4

They won’t provide a decent DKIM record. I quote from their support message

du meinst für die username@uber.space Domain? Dafür ist tatsächlich kein DKIM record gesetzt derzeit, auch für die @username.uber.space haben wir das derzeit noch nicht implementiert. Wenn du DKIM richtig nutzen willst, solltest du eine eigene Domain benutzen.

:frowning: