Please note that our mail server is configured with Authentication. Below is the code snippet for ASP. Note :
Const cdoSendUsingPickup = 1 'Send message using the local SMTP service pickup directory.
Const cdoSendUsingPort = 2 'Send the message using the network (SMTP over the network).
Const cdoAnonymous = 0 'Do not authenticate
Const cdoBasic = 1 'basic (clear-text) authentication
Const cdoNTLM = 2 'NTLM
Set objMessage = Server.CreateObject("CDO.Message")
objMessage.Subject = "Example CDO Message"
objMessage.Sender = "me@mydomain.com"
objMessage.From = "me@mydomain.com"
objMessage.To = "recipient@test.com"
objMessage.TextBody = "This is some sample message text.." & vbCRLF & "It was sent using SMTP authentication."
'==This section provides the configuration information for the remote SMTP server.
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/sendusing") = 2
'Name or IP of Remote SMTP Server
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserver") = "mail.your.com"
'Type of authentication, NONE, Basic (Base64 encoded), NTLM
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate") = cdoBasic
'Your UserID on the SMTP server
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/sendusername") = "youruserid"
'Your password on the SMTP server
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/sendpassword") = "yourpassword"
'Server port (typically 25)
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserverport") = 25
'Use SSL for the connection (False or True)
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpusessl") = False
'Connection Timeout in seconds (the maximum time CDO will try to establish a connection to the SMTP server)
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpconnectiontimeout") = 60
objMessage.Configuration.Fields.Update
objMessage.Send
Change the SMTP Server with your mail.yourdomain.com
Username --> Change with your email account in this format (email@domain.com).
Password-> Your email password.