At 18:24 11/20/2006 Monday, Ben Parker wrote: >236.7.226.147.in-addr.arpa. > host = ibmail.bsu.edu > >This appears to be a mail system gateway receiver. > >>Remote host said: 550 5.7.1 Unable to relay for >>[log in to unmask] >> >> Giving up on 147.226.7.236 >> >I get a similar error: > > Recipient: [SMTP:[log in to unmask]] > Reason: Remote SMTP Server Returned: 550 5.7.1 Unable to relay for >[log in to unmask] > >>They have no problem using campus mail program (Outlook) to post >>messages to the listserv. I also just verified that their two DNSes have the same MX info for listserv.bsu.edu so it does corroborate a "bad" mail server config. /Pete