Hello, As an LIR, we have reverse DNS entries in the RIPE database for all of our ranges at the x.x.x.in-addr.arpa level, but I was wondering if it was possible to create an entry at the host level for a specific IP address? We have an issue where mail from one of our mail servers may be being blocked due to host level reverse IP lookups failing. Any thoughts or advise would be appreciated. Chris Hallam Regional IT Manager - Asia SDL Japan Kabushiki Kaisha Meguro Higashiyama Building 4th Floor 1-4-4 Higashiyama, Meguro Ku Tokyo, 153-0043 エス・ディー・エル・ジャパン株式会社 153-0043 東京都目黒区東山 1-4-4 目黒東山ビル 4階 challam@sdl.com <mailto:challam@sdl.com> Telephone 00 81 (0)3 5720 2873 Fax 00 81 (0)3 5720 2592 ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept for the presence of computer viruses. **********************************************************************