> Hello Raymond, > > Can you please be alot more specific, maybe provide IP addresses/ e-mail > addresses. Are all the e-mails rejected coming from the lctn domain? Have > you had your users try to directly contact these people and ask them if > Frontier uses an accept-only list? Please, provide more information? > It is for the bbe.k12.mn.us domain. Here is the returned mesage Reporting-MTA: dns; localhost.localdomain Received-From-MTA: DNS; jaguar1.bbe.priv Arrival-Date: Wed, 15 Mar 2006 13:04:18 -0500 Final-Recipient: RFC822; njbertram at frontiernet.net Action: failed Status: 5.0.0 Remote-MTA: DNS; mx.frontiernet.net Diagnostic-Code: SMTP; 554 <localhost.localdomain>: Helo command rejected: You are not me. See http://postmaster.frontiernet.net. See http://postmaster.frontiernet.net Last-Attempt-Date: Wed, 15 Mar 2006 13:04:18 -0500