Your ISP (the one who you got your IP address from) should be able to put in a Reverse DNS entry for you. That could be a different ISP than the one who is hosting your MX record. Doug Jensen CAP Agency ________________________________ From: exchangelist-bounce@xxxxxxxxxxxxx on behalf of Jaspreet Singh Sent: Fri 9/8/2006 9:58 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Re: Mail Sending problem to some domains, Urgent help needed I have seen this issue with aol ID's and in my case it was related to reverse entry of the my server, as i was using public DNS it was causing problem when i published my own DNS server on internet this issue got resolved. I dont think you can do much about this if your organization is using Public DNS to host MX record. Regards, Jaspreet Jolly On 9/8/06, ChongJa@xxxxxxxxxxxxxxxx <ChongJa@xxxxxxxxxxxxxxxx> wrote: http://www.msexchange.org <http://www.msexchange.org/> -------------------------------------------------------Seen this "relaying denied possibly forged" where org has two or more servers, both are allowed to send directly to the internet, but has MX record for only one. -----Original Message----- From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Supreet Singh Sent: Friday, September 08, 2006 9:58 AM To: msexchange Subject: [ExchangeList] Mail Sending problem to some domains, Urgent help needed http://www.msexchange.org <http://www.msexchange.org/> -------------------------------------------------------Hi All, I am facing a problem since last week , i am unable to send mail to some domains. I have checked my ip , it is not listed in any of blocking lists. Following are the error logs which i recieve very frequently. You do not have permission to send to this recipient. For assistance, contact your system administrator. <servername #5.7.1 smtp;550 5.7.1 <recipient@xxxxxxx>... Relaying denied. IP name possibly forged [my server's ip 11.11.11.11 <http://11.11.11.11/> ]> Could not deliver the message in the time limit specified. Please retry or contact your administrator. <servername #4.4.7> There was a SMTP communication problem with the recipient's email server. Please contact your system administrator. <servername#5.5.0 smtp;550-Verification failed for < senderemailid@myservername>> Regards Supreet Singh __________________________________________________________ Yahoo! India Answers: Share what you know. Learn something new http://in.answers.yahoo.com/ ------------------------------------------------------- List Archives: //www.freelists.org/archives/exchangelist/ MSExchange Newsletter: http://www.msexchange.org/pages/newsletter.asp MSExchange Articles and Tutorials: http://www.msexchange.org/articles_tutorials/ MSExchange Blogs: http://blogs.msexchange.org/ ------------------------------------------------------- Visit TechGenix.com for more information about our other sites: http://www.techgenix.com <http://www.techgenix.com/> ------------------------------------------------------- To unsubscribe visit http://www.msexchange.org/pages/exchangelist.asp Report abuse to listadmin@xxxxxxxxxxxxxx ------------------------------------------------------- List Archives: //www.freelists.org/archives/exchangelist/ MSExchange Newsletter: http://www.msexchange.org/pages/newsletter.asp MSExchange Articles and Tutorials: http://www.msexchange.org/articles_tutorials/ MSExchange Blogs: http://blogs.msexchange.org/ ------------------------------------------------------- Visit TechGenix.com for more information about our other sites: http://www.techgenix.com <http://www.techgenix.com/> ------------------------------------------------------- To unsubscribe visit http://www.msexchange.org/pages/exchangelist.asp Report abuse to listadmin@xxxxxxxxxxxxxx