i am not recieving email from a customer. They are running an in house Lotus Domino email server and receiving an error message that reads:
host vscan1.anet.com [ip address] said: 450 4.7.1 Client host rejected: cannot find your hostname, [ip address] (in reply to RCPT TO command.)
these are orders being placed and since i have never used the Domino system before, im not sure what to do. i contacted my email host and from what they told me, they said that there was a problem with the nslookup; there was an extra octet. i tried to get a hold of this company's IT department to inform them that there was a problem on their side and that something needs to be done with reverse lookup, but i was told that he does not have access to that information. this is extrememly urgent! anyone have any ideas?