Unless the domain at the POP location has SPF records that don't allow your Exchange server to spoof them.
________________________________ From: Jonathan Link [mailto:jonathan.l...@gmail.com] Sent: Tuesday, December 15, 2009 12:02 PM To: MS-Exchange Admin Issues Subject: Re: Quick Outlook Question Your outgoing mail server more than likely, otherwise he could be considered to be relaying. IIRC, if you configure a secure smtp session with the server with his credentials he won't be relaying, but using your outgoing server is probably the simplest option. On Tue, Dec 15, 2009 at 2:53 PM, Sherry Abercrombie <saber...@gmail.com> wrote: I've got a co-worker trying to setup and "executive's" Outlook to connect to an additional POP3 account. My dumb question is the outgoing SMTP field, what should that be? My outgoing mail server, or the smtp server where the POP3 mail is at? -- Sherry Abercrombie "Any sufficiently advanced technology is indistinguishable from magic." Arthur C. Clarke Sent from Keller, TX, United States