root certificate for smime missing gpgconf --launch dirmngr

[Uwe Brauer]

Hi 

I received a smime signed message, however it turns out that I cannot
use it for encrypting my responsce

Since 
   > gpgsm: issuer certificate: #/CN=T-TeleSec GlobalRoot Class 2,OU=T-Systems Trust Center,O=T-Systems Enterprise Services GmbH,C=DE

Is not found

I have drmngr installed (Ubuntu 16.06) 
and run 
gpgconf --launch dirmngr

However the root certificate is still not found. Thunderbird provides
this certificate so I could install it manually.
However I would prefer an automated solution.

Any hints?

Thanks and regards

Uwe Brauer 
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