Hi Eric, Thank you for your reply.
Centos 6.7 (Final) OS running my machine. I think i have run Bind server and my cat /etc/resolv.conf below. search mydomain.com nameserver xxx.xxx.xxx.xxx nameserver xxx.xxx.xxx.xxx My domain name and my ISP DNS. On Wed, Apr 26, 2017 at 10:41 PM, Eric Broch <ebr...@whitehorsetc.com> wrote: > Hi Chandran, > > What OS are you running and what resolver? Also what's in /etc/resolv.conf? > > Eric > > On 4/25/2017 10:33 PM, Chandran Manikandan wrote: > > Hi Friends, > > > I am able to receive email from xxxx.com domain, but unable to send an > email to the same domain. > All the emails are in queue. > > I have investigated this issue in my server logs and showing below > > @4000000059002226076d2174 delivery 282: deferral:CNAME_lookup_failed_ > temporarily._(#4.4.3)/ > @4000000059002226076d3ccc status: local 0/10 remote 0/20 > @4000000059002239266b0f64 warning: unable to open todo/53805058 > > Both the server is running in internal network with the same qmailtoaster > configuration. > > Both the domain able to send an email to other external domains without > any issue. > > Anyone help me to resolve this. > > I have googled this issue, but no luck to fix this. > > > -- > *Thanks,* > *Manikandan.C* > *System Administrator* > > > -- > Eric Broch > White Horse Technical Consulting (WHTC) > > -- *Thanks,* *Manikandan.C* *System Administrator*