I have copy and pasted a list of e-mails that is correct into the BCC line. All e-mails that came up in a red box I corrected. I have no red boxes and all e-mails are accurate. I am trying to send an e-mail to approximately 240 people. I keep receiving the above error. Each time I remove one of the names it claims that another name is incorrect. I have seen several people with the same complaint on here and I have no desire to use a different program. You are one of the largest technology companies in the WORLD. FIX YOUR PROBLEMS!!!! Your program should not be set to try and "assume" what it "thinks" is an error in an e-mail address.