Sending SMTP Emails with Powershell using Authentication

The following script can be used to send an email message using SMTP. This method is slightly different to my previous post about sending email messages in Powershell as this method uses the smtpClient method rather than mailmessage in order to allow for authentication to occur.

$From = "fromaddress@domain.com"
$To = "toaddress@domain.com"
$SMTPServer = "smtp.gmail.com"
$SMTPPort = "587"
$Username = "username@gmail.com"
$Password = "gmailpassword"
$subject = "Email Subject"
$body = "Insert body text here"

$smtp = New-Object System.Net.Mail.SmtpClient($SMTPServer, $SMTPPort);

$smtp.EnableSSL = $true
$smtp.Credentials = New-Object System.Net.NetworkCredential($Username, $Password);
$smtp.Send($From, $To, $subject, $body);

You will need to update the values of the first 8 variables to match what is required for the email account/domain you are sending from.

The SMTP Server and Port number will vary for different email providers - I can confirm the server and port specified above for Gmail are correct though.

UPDATE - 29/11/13

You can also use the System.Net.Mail.MailMessage class to give you the additional option to add CC, BCC, attachments etc, as per the below script. Simply update the first 9 variables below to configure your email message.

$SMTPServer = "smtp.gmail.com"
$SMTPPort = "587"
$Username = "username@gmail.com"
$Password = ""

$to = "user1@domain.com"
$cc = "user2@domain.com"
$subject = "Email Subject"
$body = "Insert body text here"
$attachment = "C:\test.txt"

$message = New-Object System.Net.Mail.MailMessage
$message.subject = $subject
$message.body = $body
$message.to.add($to)
$message.cc.add($cc)
$message.from = $username
$message.attachments.add($attachment)

$smtp = New-Object System.Net.Mail.SmtpClient($SMTPServer, $SMTPPort);
$smtp.EnableSSL = $true
$smtp.Credentials = New-Object System.Net.NetworkCredential($Username, $Password);
$smtp.send($message)
write-host "Mail Sent"