Hi All, I am using exchange 2003. In my environment , i am trying to send the mail from test@abc.com to particular domain like xyz.com but i am getting the error below. Action: failed Diagnostic-Code: smtp; 554 5.7.1 <test@abc.com>: Sender address rejected: Access denied Remote-MTA: 10.22.12.32

That message is probably coming from the recipient's server. I can't be sure since you didn't post the entire NDR. You can verify this by enabling SMTP protocol logging, and then you'll probably be able to see the transaction between your server and the recipient's server.Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

Hi, You should check the entire NDR and provide more details. Wait for your reply. ThanksSophia Xu

Hi Avinash, As the error informs, emails from your sender is blocked by recipient end. I would like you to contact the recipient end admin to allow your account to send emails to their domain. for some reason, the recipient end admin will block some senders, who used to send bulk emails. since its a single user email sending problem, you have to ask the recipient admin to allow.. Thank you

You can do an inbound smtp email test on testexchangeconnectivity.com to determine if it's just you their blocking.James Chong MCITP | EA | EMA; MCSE | M+, S+ Security+, Project+, ITIL msexchangetips.blogspot.com