EMAIL: "Recipient Rejected By Server" Error
When I try to send to this account from the iPhone, I get a message that says "Cannot Send Mail. A copy has been placed in your outbox. Recipient "sXXXX@houston.rr.com" was rejected by the server."
What does that mean and how do I fix it. I'm getting this on my wife's email address too (also Roadrunner).
Mac OS X (10.4.10)