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+# Thunderbird Configuration on Windows for Secure Mail
+[[Prev|thunderbird]] | *step 17 of 17* | **End**
+
+## Tell Thunderbird how much you trust your correspondent
+
+ 1. Under *OpenPGP | Key Management* (*then right-click on the key you
+ want*) you can set the trust level you have for your correspondent
+ * This trust level is private: no-one knows how you have
+ set owner trust for a key
+ * If you trust a key at least marginally you won't get
+ the annoying dialog box asking you to check a key
+ every time you send an e-mail
+ 1. Note: typically people *sign* each other's keys to
+ vouch that the public key of a person corresponds to their
+ real identity
+ * Signing someone's key only says you believe that their public
+ key belongs to them (*not that you trust them*).
+ * Key signing is beyond the scope of this tutorial
+ 1. Congratulations :) You can now send and receive secure e-mail!
+
+[[!img tbird17.png align=left]]