It means that (in this PARTICULAR case, anyway) your DNS isn't properly set up. It would appear that MCImail.com has begun requiring valid reverse DNS lookup before allowing SMTP communications. I hope you don't pay your DNS guy as much as you pay your antivirus guy.
C:\>nslookup -q=mx midship.com Server: Address: midship.com MX preference = 10, mail exchanger = smtp.midship.com smtp.midship.com internet address = 12.39.69.130 C:\>nslookup -q=ptr 12.39.69.130 Server: Address: *** dns1.courts.state.tx.us can't find 130.69.39.12.in-addr.arpa.: Non-existent domain -----Original Message----- From: Tener, Richard [mailto:[EMAIL PROTECTED]] Posted At: Friday, April 19, 2002 12:26 PM Posted To: MSExchange Mailing List Conversation: custom recipient Subject: custom recipient Does anyone know why this would happen we had a custom recipeint on our server that has been working all this time until today. I verified with mci that it is not on their end so it must be on my end. Does anyone know what invalid_ip_status means. Thanks Rich Your message did not reach some or all of the intended recipients. Subject: test from logistics Sent: 4/19/02 1:19 PM The following recipient(s) could not be reached: [EMAIL PROTECTED] on 4/19/02 1:19 PM The recipient name is not recognized The MTS-ID of the original message is: c=US;a= ;p=Mid Ship;l=LOGISTICS1-020419171913Z-2794 MSEXCH:IMS:Mid Ship:Logistics:LOGISTICS1 3550 (000B09AA) 550 5.7.1 550 Invalid_IP_Status: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED]
