Don't automatically pgp encrypt email on onion only systems

src/freedombone-base-email

       echo "  route_data = \${perl{onionLookup}{$RISEUP_EMAIL_ONION}}"
       echo "  no_more"; } > /etc/exim4/conf.d/router/905_exim4-config-riseup
 
+    if ! grep -q "*.onion" /etc/exim4/conf.d/router/200_exim4-config_primary
+       sed -i 's|domains = ! +local_domains|domains = ! +local_domains : ! *.onion : ! riseup.net|g' /etc/exim4/conf.d/router/200_exim4-config_primary
+    fi
+
     { echo "onionrelays:";
       echo "  driver    = manualroute";
       echo "  domains   = *.onion";
       echo '# Optional relay of SMTP via ISP';
       echo '#set smtp_url="smtps://username:password@isp_mail_domain:465/"'; } > /etc/Muttrc
 
+    if [[ "$ONION_ONLY" != 'no' ]]; then
+        # On onion only systems email is onion router anyway, with its
+        # own encryption system, so we don't need the additional pgp layer
+        # except perhaps for some additional confidence
+        sed -i 's|set pgp_autoencrypt|unset pgp_autoencrypt|g' /etc/Muttrc
+        sed -i 's|set pgp_autosign|unset pgp_autosign|g' /etc/Muttrc
+    fi
+
     # For viewing long URLs
     echo 'REGEXP (((http|https|ftp|gopher)|mailto)[.:][^ >"\t]*|www\.[-a-z0-9.]+)[^ .,;\t>">\):]' > "/home/$MY_USERNAME/.urlview"
     echo 'COMMAND lynx -dump -width=78 -nolist %s' >> "/home/$MY_USERNAME/.urlview"