Sorry, I anonymize the domain,which is: thxtransport dot com, thanks.
On Tue, Aug 25, 2015 at 11:52 AM, Wietse Venema <wie...@porcupine.org> wrote: > Periko Support: >> Hi. >> I receive a email from a user telling me that they have issues sending >> emails to some company. >> >> I have centos 5.11 x64 postfix 2:2.3.3-7.el5. >> >> Now, I filter the domain and found this logs: >> >> Aug 25 08:23:57 mail postfix/smtp[21291]: warning: no MX host for >> XYZ.comhas a valid address record >> Aug 25 08:46:08 mail postfix/smtp[22177]: warning: no MX host for >> XYZ.com has a valid address record >> Aug 25 09:19:18 mail postfix/smtp[23290]: warning: no MX host for >> XYZ.com has a valid address record > > DNS MX lookup succeeds, but the A lookup for the MX host(s) fails. > No further help is possible without concrete details. > > Wietse
