diff --git a/notify/mail.sh b/notify/mail.sh
index 47e20414..3dfef0be 100644
--- a/notify/mail.sh
+++ b/notify/mail.sh
@@ -2,14 +2,14 @@
 
 # support local mail app
 
-
-
 mail_send() {
   _subject="$1"
   _content="$2"
   _statusCode="$3" #0: success, 1: error 2($RENEW_SKIP): skipped
+  _debug "_subject" "$_subject"
+  _debug "_content" "$_content"
+  _debug "_statusCode" "$_statusCode"
 
   _err "Not implemented yet."
   return 1
 }
-
diff --git a/notify/mailgun.sh b/notify/mailgun.sh
index 487e338e..c1085a74 100644
--- a/notify/mailgun.sh
+++ b/notify/mailgun.sh
@@ -7,10 +7,8 @@
 
 #MAILGUN_REGION="us|eu"          #optional, use "us" as default
 #MAILGUN_API_DOMAIN="xxxxxx.com"  #optional, use the default sandbox domain
-
 #MAILGUN_FROM="xxx@xxxxx.com"    #optional, use the default sendbox account
 
-
 _MAILGUN_BASE="https://api.mailgun.net/v3"
 
 # subject  content statusCode
@@ -53,7 +51,7 @@ mailgun_send() {
       _err "Can not get sandbox domain."
       return 1
     fi
-    _sendboxDomain="$(echo "$response" | _egrep_o '"name": *"sandbox.*.mailgun.org"' | cut -d : -f 2 | tr -d '" ')";
+    _sendboxDomain="$(echo "$response" | _egrep_o '"name": *"sandbox.*.mailgun.org"' | cut -d : -f 2 | tr -d '" ')"
     _debug _sendboxDomain "$_sendboxDomain"
     MAILGUN_API_DOMAIN="$_sendboxDomain"
     if [ -z "$MAILGUN_API_DOMAIN" ]; then
@@ -122,5 +120,3 @@ _mailgun_rest() {
   return 0
 
 }
-
-
diff --git a/notify/pop.sh b/notify/pop.sh
index a499406a..f118d79b 100644
--- a/notify/pop.sh
+++ b/notify/pop.sh
@@ -2,14 +2,14 @@
 
 # support pop
 
-
-
 pop_send() {
   _subject="$1"
   _content="$2"
   _statusCode="$3" #0: success, 1: error 2($RENEW_SKIP): skipped
+  _debug "_subject" "$_subject"
+  _debug "_content" "$_content"
+  _debug "_statusCode" "$_statusCode"
 
   _err "Not implemented yet."
   return 1
 }
-
diff --git a/notify/sendgrid.sh b/notify/sendgrid.sh
index d8e0e7e7..bd04155a 100644
--- a/notify/sendgrid.sh
+++ b/notify/sendgrid.sh
@@ -1,13 +1,11 @@
 #!/usr/bin/env sh
 
-
 #Support SENDGRID.com api
 
 #SENDGRID_API_KEY=""
 #SENDGRID_TO="xxxx@xxx.com"
 #SENDGRID_FROM="xxxx@cccc.com"
 
-
 sendgrid_send() {
   _subject="$1"
   _content="$2"
diff --git a/notify/smtp.sh b/notify/smtp.sh
index 2b9d69f8..6aa37ca3 100644
--- a/notify/smtp.sh
+++ b/notify/smtp.sh
@@ -2,14 +2,14 @@
 
 # support smtp
 
-
-
 smtp_send() {
   _subject="$1"
   _content="$2"
   _statusCode="$3" #0: success, 1: error 2($RENEW_SKIP): skipped
+  _debug "_subject" "$_subject"
+  _debug "_content" "$_content"
+  _debug "_statusCode" "$_statusCode"
 
   _err "Not implemented yet."
   return 1
 }
-