Problemas entre controladores de dominio

Tras pasar el DC diag en dos de mis controladores de dominio no encontré
problemas, pero al pasarlo por el que tiene exchange integrado este fue el
resultado:

DC Diagnosis

Performing initial setup:
Done gathering initial info.

Doing initial non skippeable tests

Testing server: Default-First-Site-Name\Mail
Starting test: Connectivity
. Mail passed test Connectivity

Doing primary tests

Testing server: Default-First-Site-Name\Mail
Starting test: Replications
. Mail passed test Replications
Starting test: NCSecDesc
. Mail passed test NCSecDesc
Starting test: NetLogons
. Mail passed test NetLogons
Starting test: Advertising
Warning: DsGetDcName returned information for
\\servidor1.dominio.es, when we were trying to reach Mail.
Server is not responding or is not considered suitable.
. Mail failed test Advertising
Starting test: KnowsOfRoleHolders
. Mail passed test KnowsOfRoleHolders
Starting test: RidManager
. Mail passed test RidManager
Starting test: MachineAccount
. Mail passed test MachineAccount
Starting test: Services
RPCLOCATOR Service is stopped on [Mail]
w32time Service is stopped on [Mail]
NETLOGON Service is paused on [Mail]
. Mail failed test Services
Starting test: ObjectsReplicated
. Mail passed test ObjectsReplicated
Starting test: frssysvol
. Mail passed test frssysvol
Starting test: kccevent
. Mail passed test kccevent
Starting test: systemlog
. Mail passed test systemlog

Running enterprise tests on : dominio.es
Starting test: Intersite
. dominio.es passed test Intersite
Starting test: FsmoCheck
. dominio.es passed test FsmoCheck


Me gustaría saber en que pueden afectar estos warnings. La verdad es que
estoy detectando que tenemos problemas DNS y esto genera muchos broadcast.

Un saludo y gracias.