This PowerShell script can be used to send an email or to test SMTP settings of any email service provider i.e. Azure SendGrid.

sendmail.ps1

$From = "[email protected]"
$To = "[email protected]"
$SMTPServer = "smtp.sendgrid.net"
$SMTPPort = "587"
$Username = "apikey"
$Password = "[email protected]"
$subject = "Test Email"
$body = "Test email using SendGrid Email Delivery"
$smtp = New-Object System.Net.Mail.SmtpClient($SMTPServer, $SMTPPort)
$smtp.EnableSSL = $false
$smtp.Credentials = New-Object System.Net.NetworkCredential($Username, $Password)
$smtp.Send($From, $To, $subject, $body)