I install new server and new SmarterMail (version 16, previous was 15.6) and again I have the same problem as the old one.
Each outbound email fail because this:
"Failed to connect to the recipients mail server. No MX records were found for the 'gmail.com' domain. Failing over to A records."
This is example for gmail.com but even I pointed on Google DNS I'v got the same error.
What's going on ?????
This part is over and over again for each outbound emails.
21:18:28  Failed to connect to the recipients mail server. No MX records were found for the 'gmail.com' domain. Failing over to A records.
21:18:28  Initiating connection to 220.127.116.11
21:18:28  Connecting to 18.104.22.168:25 (Id: 1)
21:18:28  Binding to local IP 22.214.171.124:0 (Id: 1)
21:18:49  Exception connecting to 126.96.36.199 (Id: 1)
21:18:49  System.Net.Sockets.SocketException (0x80004005): An attempt was made to access a socket in a way forbidden by its access permissions 188.8.131.52:25
at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)
at System.Net.Sockets.Socket.Connect(EndPoint remoteEP)
at RelayServer.Clients.SMTP.ClientConnectionSync.Connect(Int32 connectionId)