555 Access Denied when sending to PeoplePC.com

My users are trying to send e-mails to user@peoplepc.com they are getting delivery failures indicating the failure was due to 555 Access Denied.

Have you seen this before?

Thanks,

Kevin

Subject: 555 Access Denied when sending to PeoplePC.com

I believe that is a problem on the peoplepc.com site. Have you tried to use your hotmail or other free email account.