A cmdlet-like email script

I'm currently working on a database monitoring, datacollection and automation project using PowerShell. In this project I often find m self in need of sending a status or warning email when some event occurs - For a while I've just used code much like what I posted here on my blog back in december 2006, but last night I spend a bit of time writing up a cmdlet like "Send-SMTPmail" function once and for all.
Please feel free to comment the script, its functionality and implementation.

# PowerShell 1.0 script to send email through SMTP
# by Jakob Bindslet (jakob@bindslet.dk), 20. december 2007
# Current Script version 1.0
#
#NAME
# Send-SMTPmail
#
#SYNOPSIS
# Sends an email by use of an SMTP server
#
#SYNTAX
# Send-SMTPmail -to -from -subject -body
# [-smtpserver ] [-port ] [-attachment ] [-html "yes"]
# [-cc ] [-bcc ] [-alert "yes"] [-timeout ]
#
#PARAMETERS
# No specific order of the parameters are required:
# -to
# -from
# -subject
# -body
# Optional arguments are:
# -smtpserver
# Address of the smtp server to be used. This is only optional if a
# default smtpserver has been specified
# -port
# port number of the smtp server, used only if it differs from the
# standard port 25.
# -attachment
# Complete path to file to attach, ie. "c:\boot.ini"
# -html "yes"
# Indicates that the email will be in HTML format. The HTML
# content itself should be specified in the -body parameter.
# -cc
# Recipient(s) to be included as "carbon copy" on the email.
# -bcc
# Recipient(s) to be included as "blind carbon copy" on the email.
# -alert "yes"
# The email will be treatet as an alert (the standard sharepoint
# alert icon will be used in outlook).
# -timeout
# Sets the timeout in miliseconds, for the send mail operation.
# This includes the time it take to upload any attachments, so
# be careful of setting this too low if using attached file.
#
#NOTES
#
# -------------------------- EXAMPLE 1 --------------------------
# C:\PS>send-SMTPmail -to hans@contoso.msft -from theBoss@contoso.msft
# -subject "Congratulations!" -smtpserver "smtp.contoso.msft"
# -body "You'll get one extra week of vacation year"
# -bcc "theMiddleBoss@contoso.msft"

function Send-SMTPmail() {
## Setting defaults
$to = $null; $from = $null; $from = $null; $subject = $null; $body = $null;
$attachment = $null; $html = $null; $cc = $null; $bcc = $null; $port = $null
$alert = $null; $timeout = $null

$smtpserver = "smtp.myserver.com"
$LastArg = $args.length -1
for ($i = 0; $i -le $LastArg; $i += 2) {
if ($args[$i].substring(0,1) -eq "-") {
Write-Host "param" $args[$i] "value" $args[$i+1] ##debug line, can be removed
switch ($args[$i]) {
-smtpserver {$smtpserver = $args[$i+1]}
-to {$to = $args[$i+1]}
-from {$from = $args[$i+1]}
-subject {$subject = $args[$i+1]}
-body {$body = $args[$i+1]}
-attachment {$attachment = $args[$i+1]}
-html {$html = "yes"}
-cc {$cc = $args[$i+1]}
-bcc {$bcc = $args[$i+1]}
-port {$port = $args[$i+1]}
-alert {$alert = "yes"}
-timeout {$timeout = $args[$i+1]}
}
}
}
$mailer = new-object Net.Mail.SMTPclient($smtpserver)
if ($port -ne $null) {$mailer.port = $port}
if ($timeout -ne $null) {$mailer.timeout = $timeout}
$msg = new-object Net.Mail.MailMessage($from,$to,$subject,$body)
if ($html -eq "yes") {$msg.IsBodyHTML = $true}
if ($cc -ne $null) {$msg.cc.add($cc)}
if ($bcc -ne $null) {$msg.bcc.add($bcc)}
if ($alert -eq "yes") {$msg.Headers.Add("message-id", "<3bd50098e401463aa228377848493927-1>")}
if ($attachment -ne $null) {
$attachment = new-object Net.Mail.Attachment($attachment)
$msg.attachments.add($attachment)
}
$mailer.send($msg)
}