TT#6702 do not die on fraud/credidwarning send mail errors

* simply print the send mail error occurrences instead
      of dying to allow the whole list to be processed

Change-Id: I82faa2ec863a8fcae8a220c937afcd61f483c0fd
(cherry picked from commit 94266a5814)

bin/ngcp-credit-warning

@@ -140,7 +140,10 @@ sub main {
                 { map { $_ => $balance->{$_} } qw(id cash_balance) };
         }
         if (@contracts) {
-            send_email($cwarning, \@contracts);
+            eval {
+                send_email($cwarning, \@contracts);
+            };
+            print $EVAL_ERROR if $EVAL_ERROR;
         }
     }
     return;

bin/ngcp-fraud-auto-lock

@@ -185,7 +185,10 @@ sub main {
         if ($event->{interval_lock} > 0) {
             lock_customer($event, $subscribers);
         }
-        send_email($event, $subscribers);
+        eval {
+            send_email($event, $subscribers);
+        };
+        print $EVAL_ERROR if $EVAL_ERROR;
     }
     return;
 }

bin/ngcp-fraud-daily-lock

@@ -185,7 +185,10 @@ sub main {
         if ($event->{interval_lock} > 0) {
             lock_customer($event, $subscribers);
         }
-        send_email($event, $subscribers);
+        eval {
+            send_email($event, $subscribers);
+        };
+        print $EVAL_ERROR if $EVAL_ERROR;
     }
     return;
 }