SMTP using SOCKS5, SOCKS4 Proxy

Demonstrates how to communicate with an SMTP server via a SOCKS4 or SOCKS5 proxy.

Download Chilkat Email ActiveX

Download Chilkat IMAP ActiveX

'  The mailman object is used for sending and receiving email.
Dim mailman As New ChilkatMailMan2

'  Any string argument automatically begins the 30-day trial.
Dim success As Long
success = mailman.UnlockComponent("30-day trial")
If (success <> 1) Then
    MsgBox "Component unlock failed"
    Exit Sub
End If

'  To use a SOCKS4 or SOCKS5 proxy, simply set the following
'  properties prior to making any calls that communicate with
'  an SMTP server:
'  The SOCKS hostname may be a domain name or
'  IP address:
mailman.SocksHostname = "www.mysocksproxyserver.com"
mailman.SocksPort = 1080
mailman.SocksUsername = "myProxyLogin"
mailman.SocksPassword = "myProxyPassword"
'  Set the SOCKS version to 4 or 5 based on the version
'  of the SOCKS proxy server:
mailman.SocksVersion = 5
'  Note: SOCKS4 servers only support usernames without passwords.
'  SOCKS5 servers support full login/password authentication.

'  Set the SMTP server.
mailman.SmtpHost = "smtp.chilkatsoft.com"

'  Set the SMTP login/password (if required)
mailman.SmtpUsername = "myUsername"
mailman.SmtpPassword = "myPassword"

'  Create a new email object
Dim email As New ChilkatEmail2

email.Subject = "This is a test"
email.Body = "This is a test"
email.From = "Chilkat Support <support@chilkatsoft.com>"
email.AddTo "Chilkat Admin","admin@chilkatsoft.com"

'  Call SendEmail to connect to the SMTP server and send.
'  The connection (i.e. session) to the SMTP server remains
'  open so that subsequent SendEmail calls may use the
'  same connection.
success = mailman.SendEmail(email)
If (success <> 1) Then
    MsgBox mailman.LastErrorText
    Exit Sub
End If

'  Some SMTP servers do not actually send the email until
'  the connection is closed.  In these cases, it is necessary to
'  call CloseSmtpConnection for the mail to be  sent.
'  Most SMTP servers send the email immediately, and it is
'  not required to close the connection.  We'll close it here
'  for the example:
success = mailman.CloseSmtpConnection()
If (success <> 1) Then
    MsgBox "Connection to SMTP server not closed cleanly."
End If

MsgBox "Mail Sent!"