Invalid recipient, or untrusted, or not found

[20-100]

Hello,

I recently changed from Thunderbird 17 to Icedove 10 (for other reasons) and I had to change enigmail version. I currently have version 1.4.

My problem is when I try to send an encrypted message, a window pops up telling me :
"Invalid recipient, or untrusted, or not found" (I use it in french ["Le destinataire est invalide, n'est pas de confiance, ou n'a pas été trouvé"], so not sure of the exact english translation).

Is it linked to the "Always trust users's keys" option ?
Isn't enigmail supposed to use the trust model of gpg ?

Thank you for your help, thank you for this plugin.

[Ludwig Hügelschäfer]

Yes, this is linked to the option "Always trust people's keys". If not set, then Enigmail uses the trust model of gpg.

[20-100]

Well, the problem was I wa trying to send a mail to a mail-alias of a contact which was not included in hist gpg-key.
My fault then.

Thank you for the precision.