Код:

#include <Inet.au3>

$s_SmtpServer = "smtp.gmail.com"
$s_FromName = "eee"
$s_FromAddress = "qwerty@gmail.com"
$s_ToAddress = "zxcvb@gmail.com"
$s_Subject = "My Test UDF"

$as_Body = "Test"
$Response = _INetSmtpMail($s_SmtpServer, $s_FromName, $s_FromAddress, $s_ToAddress, $s_Subject, $as_Body)
$err = @error
If $Response = 1 Then
    MsgBox(0, "send", "mail sent")
Else
    MsgBox(0, "err", "fail" & $err)