Send SMTP E-mail using PowerShell

Modified on Thu, 8 May at 12:00 PM

Without authentication:

$mailserver = "smtp.abc.com"
$smtpport = 25
$from = "user@domain.com"
$to = "user@abc.com"

Send-MailMessage -SmtpServer $mailserver -Port $smtpport -From $from -To $to -Subject "SMTP Test" -Body "This is a test message"

Without authentication with SSL:

$mailserver = "smtp.abc.com"
$smtpport = 25
$from = "user@domain.com"
$to = "user@abc.com"

Send-MailMessage -SmtpServer $mailserver -Port $smtpport -From $from -To $to -Subject "SMTP Test" -Body "This is a test message" -UseSsl

Bulk:

# Must be in PowerShell Core (7+)
$mailserver = "smtp.abc.com"
$smtpport = 25
$from = "user@domain.com"
$to = "user@abc.com"
$count = 500

1..$count | ForEach-Object -Parallel {
    $randomNumber = Get-Random -Minimum 100000 -Maximum 999999
    $subject = "$randomNumber SMTP Test"
    Send-MailMessage -SmtpServer $using:mailserver -Port $using:smtpport -From $using:from -To $using:to -Subject $subject -Body "This is a test message"
} -ThrottleLimit 20