- Decrypt any MIME encrypted parts found in the selected
- content (ie. "multipart/encrypted" parts). Status of the
- decryption will be reported (currently only supported with
- --format=json) and the multipart/encrypted part will be
- replaced by the decrypted content.
+ <b>sender</b> Replies only to the sender. If replying to user's own
+ message (Reply-to: or From: header is one of the user's
+ configured email addresses), try To:, Cc:, and Bcc: head‐
+ ers in this order, and copy values from the first that
+ contains something other than only the user's addresses.
+
+ <b>--decrypt=(false|auto|true)</b>
+ If <b>true</b>, decrypt any MIME encrypted parts found in the selected con‐
+ tent (i.e., "multipart/encrypted" parts). Status of the decryption
+ will be reported (currently only supported with <b>--format=json</b> and
+ <b>--format=sexp</b>), and on successful decryption the multipart/encrypted
+ part will be replaced by the decrypted content.
+
+ If <b>auto</b>, and a session key is already known for the message, then it
+ will be decrypted, but notmuch will not try to access the user's se‐
+ cret keys.
+
+ Use <b>false</b> to avoid even automatic decryption.
+
+ Non-automatic decryption expects a functioning <b>gpg-agent</b>(1) to pro‐
+ vide any needed credentials. Without one, the decryption will likely
+ fail.
+
+ Default: <b>auto</b>