Mention base64 keydata being stored in the autocrypt database.

diff --git a/doc/manual.xml.head b/doc/manual.xml.head
index 56416e091939f2c1aea35860fe644d71dc2566b8..8695c59019569c654ce1053588529644aa3a1aba 100644 (file)
--- a/doc/manual.xml.head
+++ b/doc/manual.xml.head
@@ -9895,15 +9895,35 @@ please have a look at the mixmaster documentation.
       an appropriate signature message for verified messages.
     </para>
     <para>
-      Both methods have one additional caveat: replying to an
-      Autocrypt decrypted message by default forces Autocrypt mode on.
-      By sharing the same key, all replies will then start in
-      Autocrypt mode, even if the message wasn't sent by one of your
-      Autocrypt peers.  <link
-      linkend="autocrypt-reply">$autocrypt_reply</link> can be
-      <emphasis>unset</emphasis> to allow manual control of the mode
-      when replying.
+      Both methods have a couple additional caveats:
     </para>
+    <itemizedlist>
+      <listitem>
+        <para>
+          First, replying to an Autocrypt decrypted message by default
+          forces Autocrypt mode on.  By sharing the same key, all
+          replies will then start in Autocrypt mode, even if a message
+          wasn't sent by one of your Autocrypt peers.  <link
+          linkend="autocrypt-reply">$autocrypt_reply</link> can be
+          <emphasis>unset</emphasis> to allow manual control of the
+          mode when replying.
+        </para>
+      </listitem>
+      <listitem>
+        <para>
+          Second, when Mutt creates an account from a gpg key, it
+          exports the public key, base64 encodes it, and stores that
+          value in the sqlite3 database.  The value is then used in
+          the Autocrypt header added to outgoing emails.  The ECC keys
+          Mutt creates don't change, but if you use external keys that
+          expire, when you resign to extend the expiration you will
+          need to recreate the Autocrypt account using the <link
+          linkend="autocryptdoc-acctmgmt">account menu</link>.
+          Otherwise the Autocrypt header will contain the old expired
+          exported keydata.
+        </para>
+      </listitem>
+    </itemizedlist>
   </sect2>
 </sect1>
 </chapter>