>> "Uwe" == Uwe Brauer <oub@mat.ucm.es> writes:

   > Hello
   > I have several email accounts with different (comodo certificates). 
   > Now one certificate for the address address1@gmail.com has expired.

Sorry, I found the culprit, I had the line 
 encrypt-to <address1@gmail.com>
in my gpgsm.conf file

thanks

Uwe Brauer