Hello everyone. I do not know that what is happening in my mail server, usually have Able to send mails to a German domain until yesterday when it started to Notify the server to send an NDR when that domain German. I hope you can help me with this problem. Unable to locate the following recipients: Name, Name 22/01/2008 15:08 No permission to send to this recipient. Please Contact your system administrator for assistance. <Server.domain.pt # 5.7.1 SMTP; 550 5.7.1 This system is Configured to reject mail from XXX.XXX.XX.XXX (reverse DNS lookup failed)>
Do you have a Reverse PTR Record for your IP? http://www.intermedia.net/support/kb/default.asp?id=1317 In addition, do you relay your mail through a Smarthost such as your ISP? -- John Oliver, Jr MCSE, MCT, CCNA Exchange MVP 2008 Microsoft Certified Partner "news.microsoft.com" wrote in message news:uSUB3HQXIHA.4740@TK2MSFTNGP02.phx.gbl... > Hello everyone. > > > I do not know that what is happening in my mail server, usually have Able > to send mails to a German domain until yesterday when it started to Notify > the server to send an NDR when that domain German. > > > I hope you can help me with this problem. > > Unable to locate the following recipients: > > > Name, Name 22/01/2008 15:08 > No permission to send to this recipient. Please Contact your > system administrator for assistance. > <Server.domain.pt # 5.7.1 SMTP; 550 5.7.1 This system is > Configured to reject mail from XXX.XXX.XX.XXX (reverse DNS lookup failed)>
