On Thu, Jun 02, 2005 at 03:43:04AM +0000, Nooshin Madjdi wrote: > I have Mdaemon server and my users can send and receive email without any > problem , but sometimes (it is about 3 days) they say that when they want > to send email to special domain email address, they got this error > ? > eporting-MTA: dns; hdns1.company2.com > X-Postfix-Queue-ID: C4FD320B102 > X-Postfix-Sender: rfc822; [EMAIL PROTECTED] > Arrival-Date: Wed, 1 Jun 2005 11:24:50 +0200 (CEST) > > Final-Recipient: rfc822; [EMAIL PROTECTED] > Action: failed > Status: 5.0.0 > Diagnostic-Code: X-Postfix; Host or domain name not found. Name service > error > for name=hdns2.company2.com.tr type=A: Host not found > )
postfix couldn't resolve company2.com and got authoritative answer (i.e NXDOMAIN, domain doesn't exist). check the dns (i.e resolver) where postfix run, and take a look at authoritative nameserver for zone company2.com, if company2.com can be resolved or not. If it's true that NXDOMAIN comes from authoritative source, then it's highly possible that records for zone company2.com in question (hdns2.company2.com.tr) doesn't exist. Regards, P.Y. Adi Prasaja
