Hi Everyone. I'm hoping that someone can help me out here. I'm pretty tech savvy, but I've run into this issue a couple of times and have tried everything I can think of with no resolution.

One of my employees is having a problem sending emails but only to some email addresses, not to all. There has been no similarities in e-mail addresses or anything that I've noticed. (One was a bellsouth.net email, and the other was a company's email) Basically she sends the message and it just hangs in her outbox. I've checked the SMTP settings and everything is correct. She can email most people with no problem. Outlook returns NO errors, it's almost like it thinks that the email was sent, even though it never was. It never gets to her "Sent Items" It basically goes through the "Send/Receive" process and acts like something was sent even tho it never was.

I did try a test where we attempted to send the email and BCC'd her on it, and SHE received it (again, it stayed hung up in the outbox, and never went to "sent") but when we checked with the client, they hadn't received anything.

She's on Outlook 2007, and I'm at a complete loss. Any ideas or advice for things to try would be greatly appreciated.