Send-Mail works with CAS Array members but not with the Array itself

Hi,

A very simple problem but did not find anyway

a software like solarwinds orion monitor can send alert emails with the SMTP server and the credentials you provide

I have a CAS Array in Ex2010 call CASArray and members of CAS01 and CAS02 and everything works OK for this cAS in OWA and outlook

but solarwinds can send to SMTP Server Cas01 and also Cas02 but when set it to CASArray, nothing is sent

i went to check in powershell with Send-MailMessage

there was the same too

Send-MailMessage -From me@domain.com -To you@domain.com  -Subject "Test" -Body "Hi" -SMTPServer CAS01 -        works

Send-MailMessage -From me@domain.com -To you@domain.com  -Subject "Test" -Body "Hi" -SMTPServer CAS02 -        works

but this does not

Send-MailMessage -From me@domain.com -To you@domain.com  -Subject "Test" -Body "Hi" -SMTPServer CASArray -        works

and the error is

Send-MailMessage : Service not available, closing transmission channel. The server response was: 4.3.2 Service not available

any help ?

Payne is back