.PHP on IIS relies on the virtual SMTP server in IIS to send mail through it's mail function.<P>I need to either:<BR>A) get the Virutal server to deliver mail without using our exchange server or<BR>B ...

One of the little-known freebies Gmail offers is a portable SMTP server to send mail from any network for any email address. In your email client software, under Outgoing mail, set the SMTP server to ...

If you haven't already, enable Verbose protocol logging on the Exchange send connector and see if it gives you any more hints. Is the send connector setup for MX DNS resolution or is it using a ...