@@ -, +, @@ 
---
 ssmtp.c |   34 ++++++++++++++++++++++++++++------
 1 files changed, 28 insertions(+), 6 deletions(-)
--- a/ssmtp.c	
+++ a/ssmtp.c	
@@ -850,6 +850,32 @@ char *firsttok(char **s, const char *delim)
 }
 
 /*
+ * This is a simple trim function that only trim the space on the left of the string.
+ * It will not duplicate the original string. It returns a pointer of the original string which is not a space
+ * Args:
+ *  char *str:
+ *      Address of the pointer to the string we are going to trim.
+ * Return value:
+ *  The pointer to the first none space character in the original string.
+ *  You do not need to free this pointer.
+ */
+char *trimleft(char *str) {
+    if(str == (char *)NULL)
+        return NULL;
+
+    while(str != (char *)NULL) {
+        if(isspace(*str)) {
+            str++;
+            continue;
+        }
+
+        break;
+    }
+
+    return str;
+}
+
+/*
 read_config() -- Open and parse config file and extract values of variables
 */
 bool_t read_config()
@@ -869,15 +895,11 @@ bool_t read_config()
 	}
 
 	while(fgets(buf, sizeof(buf), fp)) {
-		char *begin=buf;
+		char *begin=trimleft(buf);
 		char *rightside;
-		/* Make comments invisible */
-		if((p = strchr(buf, '#'))) {
-			*p = (char)NULL;
-		}
 
 		/* Ignore malformed lines and comments */
-		if(strchr(buf, '=') == (char *)NULL) continue;
+		if(*begin == '#' || strchr(buf, '=') == (char *)NULL) continue;
 
 		/* Parse out keywords */
 		p=firsttok(&begin, "= \t\n");
--