[CentOS-es] warning: no MX host for thxtransport.com has a valid address record

[Carlos Alvear]

 Lo que puedo indicar es que el registro MX existe, no tiene registro PTR
(eso es un problema con respecto a los servidores de correo, deben tener si
o si PTR si no son considerados como spam), no tiene registro SPF
(utilizado para confirmar que estas autorizado para enviar correo a nombre
de tu dominio) , etc.. me parece que por ahi va la cosa.....

2015-08-25 15:10 GMT-03:00 Periko Support <pheriko.support en gmail.com>:

> Hola.
>
> Se estan quejando que los correos para un X dominio estan tardando en
> llegarle.
>
> Revisando los logs para ese correo veo varios warnings/errores en maillog:
>
> Aug 25 09:56:41 mail postfix/smtp[25658]: 8EBC41B006F: to=<XXX>,
> relay=none, delay=0.16, delays=0.15/0/0/0, dsn=4.4.3, status=deferred
> (Host or domain name not found. Name service error for
> name=inbound.registeredsite.com type=A: Host not found, try again)
> Aug 25 09:56:41 mail postfix/smtp[25658]: 8EBC41B006F: to=<XXX en XXXX>,
> relay=none, delay=0.16, delays=0.15/0/0/0, dsn=4.4.3, status=deferred
> (Host or domain name not found. Name service error for
> name=inbound.registeredsite.com type=A: Host not found, try again)
> Aug 25 10:17:32 mail postfix/cleanup[24175]: BD7EE1B0071:
> message-id=<04da01d0df5a$bf9de0b0$3ed9a210$@XXXX>
> Aug 25 10:17:32 mail postfix/qmgr[2866]: BD7EE1B0071: from=<XXX en XXXX>,
> size=37888, nrcpt=1 (queue active)
> Aug 25 10:17:52 mail postfix/smtp[28000]: warning: no MX host for XXXX
> has a valid address record
> Aug 25 10:17:52 mail postfix/smtp[28000]: 729551B0071: to=<XXXX en XXXX>,
> relay=none, delay=10, delays=0.08/0/10/0, dsn=4.4.3, status=deferred
> (Host or domain name not found. Name service error for
> name=inbound.registeredsite.com type=A: Host not found, try again)
> Aug 25 10:18:23 mail postfix/smtp[28000]: warning: no MX host for XXXX
> has a valid address record
> Aug 25 10:18:23 mail postfix/smtp[28000]: 21B5B1B0073: to=<XXXX en XXXX>,
> relay=none, delay=0.05, delays=0.05/0/0/0, dsn=4.4.3, status=deferred
> (Host or domain name not found. Name service error for
> name=inbound.registeredsite.com type=A: Host not found, try again)
> Aug 25 10:26:08 mail postfix/smtp[28578]: warning: no MX host for XXXX
> has a valid address record
> Aug 25 10:26:08 mail postfix/smtp[28786]: warning: no MX host for XXXX
> has a valid address record
> Aug 25 10:26:08 mail postfix/smtp[29046]: warning: no MX host for XXXX
> has a valid address record
>
> Sera problemas del dns de ellos?
>
> Alguna pista, ya que solo en ese dominio veo estos problemas.
>
> Centos 5.11 x64, gracias!!!
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