possible resolution of https://community.cyberpanel.net/t/domain-that-you-have-provided-is-not-configured-as-rdns-for-your-server-ip-404/52190

plogical/httpProc.py

@@ -31,10 +31,6 @@ class httpProc:
                             templateName = 'baseTemplate/error.html'
                             return render(self.request, templateName, {'error_message': 'You are not authorized to access %s' % (self.function)})
 
-
-
-
-
                 ###
 
                 if self.data == None:

plogical/mailUtilities.py

@@ -1515,6 +1515,7 @@ LogFile /var/log/clamav/clamav.log
 
     @staticmethod
     def FetchPostfixHostname():
+        try:
             PostfixPath = '/etc/postfix/main.cf'
             if os.path.exists(PostfixPath):
                 PostFixConf = open(PostfixPath, 'r').readlines()
@@ -1525,6 +1526,8 @@ LogFile /var/log/clamav/clamav.log
                         return hostname
             else:
                 return 'localhost'
+        except:
+            return 'localhost'
 
     @staticmethod
     def reverse_dns_lookup(ip_address):

plogical/virtualHostUtilities.py

@@ -76,6 +76,13 @@ class virtualHostUtilities:
         except:
             CurrentHostName = ''
 
+        if not skipRDNSCheck:
+            if not os.path.exists('/home/cyberpanel/postfix'):
+                message = 'This server does not come with postfix installed. [404]'
+                print(message)
+                logging.CyberCPLogFileWriter.statusWriter(tempStatusPath, message)
+                logging.CyberCPLogFileWriter.writeToFile(message)
+
 
         ####