Email still sends on weekends, confused as to why.

Question

IF((Get-Date).DayOfWeek -ne "Saturday" -ne "Sunday"){Send-MailMessage -SmtpServer $SMTPSERVER -From $From -To $To -Subject $Subject -Body $Body -BodyAsHtml}
Hi Everyone,
Above is my code. I basically only want it to send monday-friday but it still sends on the weekend. Not sure as to why as the (get-date).dayofweek bring back a string value of e.g. Monday. 
What have I done wrong?
If this is helpful please mark it so. Also if this solved your problem mark as answer.

Answer 1

Will this work? I don't see why I need a second IF.
IF((Get-Date).DayOfWeek -ne "Saturday" -ne "Sunday"){Send-MailMessage -SmtpServer $SMTPSERVER -From $From `
-To $To -Subject $Subject -Body $Body -BodyAsHtml}
If this is helpful please mark it so. Also if this solved your problem mark as answer.
That will not work.  When you chain operators like that, the result of each one is passed to the next operator. 
The first -ne operator is doing to return either $true or $false.  then the next -ne is going to compare that to 'Sunday'.  
Powershell will coerce the object on the RH side of the operator to match the type on the LH side.  
In the second -ne, the LH side type is [bool] ($true or $false).
When a [string] is coerced to [bool], any non-empty or null string will evaluate as $true,  so 'Sunday' is always $true.
[string](0..33|%{[char][int](46+("686552495351636652556262185355647068516270555358646562655775 0645570").substring(($_*2),2))})-replace " "