The transport failed to connect to the server

Hello
I have been using this code and it is now not working.i get the above error

Dim objMM As New MailMessage

objMM.To = "me@mymail.com"
objMM.From = "anotherme@mymail.com"

objMM.BodyFormat = MailFormat.Text
objMM.Priority = MailPriority.Normal

objMM.Subject = "Hello"

objMM.Body = "Dear Me" & vbCrLf & vbCrLf & "Please NOTE: that your mail is not sending."

SmtpMail.SmtpServer = "ip address"
SmtpMail.Send(objMM)

am i doing something wrong?(this is in .NET 1) your help will be greatly appreciated.

SmtpMail.SmtpServer = "ip address"

is that literally, or you entered some IP address?

Hello, I have entered an ip address

The code could not connect to a mail server at the ip address you specified.

If you're on a hosted server, maybe your host moved the server. You should try something like "mail.yourdomain.com" or "smtp.yourdomain.com" which uses the DNS record rather than a specific IP. The DNS should automatically update to the new IP.

Could be the mail server is down.

Could be that authentication has been turned on for the mail server, so you have to use valid login details to be able to use the SMTP server.

If you're on a hosted server, you should contact your host and ask them if they've changed anything. If not, there must be something wrong with or changed on the mail server you're trying to use.

Yes, I wasn't sure about that - I thought that IP address is sufficient, although I've never tried it.