Forum Discussion
Host not found mail.protection.outlook.com
Hi, we use MS EXCH 2k10 with Postfix frontend and there is a major issue with DNS resolution of mail.protection.outlook.com domains on Postfix servers. These servers are using BIND 9.9.5 nameservers...
Not an advisor, but our client with an account at outlook.com have the same everyday repetitive problem. Some outbound messages during the HELO-EHLO conversations go from servers with names which have not corresponded IP address in DNS records.