diff --git a/acme.sh b/acme.sh
index aaab2104..512d57e8 100755
--- a/acme.sh
+++ b/acme.sh
@@ -3417,13 +3417,13 @@ _regAccount() {
   if [ "$ACME_VERSION" = "2" ]; then
     regjson='{"termsOfServiceAgreed": true}'
     if [ "$ACCOUNT_EMAIL" ]; then
-      regjson='{"contact": ["mailto: '$ACCOUNT_EMAIL'"], "termsOfServiceAgreed": true}'
+      regjson='{"contact": ["mailto:'$ACCOUNT_EMAIL'"], "termsOfServiceAgreed": true}'
     fi
   else
     _reg_res="$ACME_NEW_ACCOUNT_RES"
     regjson='{"resource": "'$_reg_res'", "terms-of-service-agreed": true, "agreement": "'$ACME_AGREEMENT'"}'
     if [ "$ACCOUNT_EMAIL" ]; then
-      regjson='{"resource": "'$_reg_res'", "contact": ["mailto: '$ACCOUNT_EMAIL'"], "terms-of-service-agreed": true, "agreement": "'$ACME_AGREEMENT'"}'
+      regjson='{"resource": "'$_reg_res'", "contact": ["mailto:'$ACCOUNT_EMAIL'"], "terms-of-service-agreed": true, "agreement": "'$ACME_AGREEMENT'"}'
     fi
   fi
 
@@ -3503,7 +3503,7 @@ updateaccount() {
 
   if [ "$ACME_VERSION" = "2" ]; then
     if [ "$ACCOUNT_EMAIL" ]; then
-      updjson='{"contact": ["mailto: '$ACCOUNT_EMAIL'"]}'
+      updjson='{"contact": ["mailto:'$ACCOUNT_EMAIL'"]}'
     fi
   else
     # ACMEv1: Updates happen the same way a registration is done.
@@ -4019,7 +4019,7 @@ issue() {
       #for dns manual mode
       _savedomainconf "Le_OrderFinalize" "$Le_OrderFinalize"
 
-      _authorizations_seg="$(echo "$response" | _egrep_o '"authorizations" *: *\[[^\]*\]' | cut -d '[' -f 2 | tr -d ']' | tr -d '"')"
+      _authorizations_seg="$(echo "$response" | _egrep_o '"authorizations" *: *\[[^\[]*\]' | cut -d '[' -f 2 | tr -d ']' | tr -d '"')"
       _debug2 _authorizations_seg "$_authorizations_seg"
       if [ -z "$_authorizations_seg" ]; then
         _err "_authorizations_seg not found."