Common reason of the messages not being sent is one of the following:

Server requires SMTP authentication
Authentication failed (wrong UserName and/or Password, unsupported authentication method). You can try several common choices:
- UserName=Account_name (e.g. "jdoe" if your e-mail address is "jdoe@domain.com")
- UserName=E-Mail_address (e.g. "jdoe@domain.com")
- Try different values for AuthMethod property (such as 1, 2, 3, 4, 5)
Specified server is not SMTP (ErrCode=4 in this case). For example, SMTP server name for "jdoe@domain.com" is usually somewhat like "mail.domain.com" or "smtp.domain.com" BUT NOT just "domain.com"
SMTP server rejects connections from your IP address
SMTP server is behind firewall
Specified "From:" address is not allowed by this server
Specified "To:" address is allowed only if the user has already passed SMTP authentication
Message size limit exceeded, traffic limit per connection exceeded, etc.

You can determine exact reason of the problem from MailBee's log file. To enable logging, set EnableLogging and LogFilePath properties of the SMTP object.

This sample sends simple e-mail using SMTP authentication. SMTP session log is written into "C:\Temp\smtp_log.txt" file.

Dim objSMTP Set objSMTP = CreateObject("MailBee.SMTP") ' Enable logging SMTP session into a file objSMTP.EnableLogging = True objSMTP.LogFilePath = "C:\Temp\smtp_log.txt" objSMTP.ClearLog objSMTP.LicenseKey = "put your license key here" ' Set SMTP server name objSMTP.ServerName = "mail.server.com" ' Enable SMTP authentication objSMTP.AuthMethod = 2 ' Set authentication credentials objSMTP.UserName = "jdoe" objSMTP.Password = "secret" ' Set message properties objSMTP.FromAddr = "sender@firstdomain.com" objSMTP.ToAddr = "recipient@seconddomain.com" objSMTP.Subject = "Test" objSMTP.BodyText = "Body of the test message" ' Try to send message If objSMTP.Send Then MsgBox "Sent successfully" Else MsgBox "Error #" & objSMTP.ErrCode & ", " & objSMTP.ErrDesc End If

<% Dim objSMTP Set objSMTP = Server.CreateObject("MailBee.SMTP") ' Enable logging SMTP session into a file objSMTP.EnableLogging = True objSMTP.LogFilePath = "C:\Temp\smtp_log.txt" objSMTP.ClearLog objSMTP.LicenseKey = "put your license key here" ' Set SMTP server name objSMTP.ServerName = "mail.server.com" ' Enable SMTP authentication objSMTP.AuthMethod = 2 ' Set authentication credentials objSMTP.UserName = "jdoe" objSMTP.Password = "secret" ' Set message properties objSMTP.FromAddr = "sender@firstdomain.com" objSMTP.ToAddr = "recipient@seconddomain.com" objSMTP.Subject = "Test" objSMTP.BodyText = "Body of the test message" ' Try to send message If objSMTP.Send Then Response.Write "Sent successfully" Else Response.Write "Error #" & objSMTP.ErrCode & ", " & objSMTP.ErrDesc End If %>