I have problem in mail server - hmail

i have 2 server
after add A and MX record in Cloudflare and config MailServer and WebServer
and open port 25 but can not send mail from mail server

my mail server is : mail.kingpoker.poker

i see this problem in mail sender

Unable to connect to mail server(s). Please specify a valid mail server, server properties, or check your network connection. The following exception was also recorded: System.Exception: Unable to to connect to mail.kingpoker.poker at port 25. A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 104.24.1.6:25 —> System.Net.Sockets.SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 104.24.1.6:25
at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)
at System.Net.Sockets.Socket.Connect(EndPoint remoteEP)
at aspNetEmailInternal.ᐻ.ᐁ(EndPoint , String , Int32 )
at aspNetEmailInternal.ᐻ.Connect(String remoteServer, Int32 remotePort)
at aspNetEmail.EmailMessage.ᐻ(String )
at aspNetEmail.EmailMessage.ᐼ(String )
— End of inner exception stack trace —
at aspNetEmail.EmailMessage.ᐼ(String )
at aspNetEmail.EmailMessage.ᐺ()

Complete Message:

aspNetEmail.SmtpConnectionException: Unable to connect to mail server(s). Please specify a valid mail server, server properties, or check your network connection. The following exception was also recorded: System.Exception: Unable to to connect to mail.kingpoker.poker at port 25. A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 104.24.1.6:25 —> System.Net.Sockets.SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 104.24.1.6:25
at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)
at System.Net.Sockets.Socket.Connect(EndPoint remoteEP)
at aspNetEmailInternal.ᐻ.ᐁ(EndPoint , String , Int32 )
at aspNetEmailInternal.ᐻ.Connect(String remoteServer, Int32 remotePort)
at aspNetEmail.EmailMessage.ᐻ(String )
at aspNetEmail.EmailMessage.ᐼ(String )
— End of inner exception stack trace —
at aspNetEmail.EmailMessage.ᐼ(String )
at aspNetEmail.EmailMessage.ᐺ()

please help me
thanks

Switch the :orange: icon to :grey: for that particular host. Just keep in mind it wont proxy at this point and reveal the actual IP address.

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