Do I enter the MX record or does Exchange?

  • Thread starter Thread starter jm
  • Start date Start date
J

jm

I know this may sound dumb, but I thought when I installed Exchange in
my domain that it would create the appropriate DNS entries. I don't
remember having to create any entries for my other Exchange servers.

I ask because I get NDRs randomly. I can't find the Exchange server MX
in the DNS and I think it may be the reason.

Do I just add a regular MX record? I saw my other Exchange services
have a normal MX, but they also have a guid looking parent folder one
too.

Thanks for any help.
 
jm said:
I know this may sound dumb, but I thought when I installed Exchange in
my domain that it would create the appropriate DNS entries. I don't
remember having to create any entries for my other Exchange servers.
Click to expand...

No it doesn't do that.
I ask because I get NDRs randomly. I can't find the Exchange server MX
in the DNS and I think it may be the reason.
Click to expand...

Maybe or maybe not. Technically an MX record should only be
necessary to RECEIVE mail. (Some people injudiciously misuse
the lack of an MX to refuse mail however.)

[ It makes perfect sense for one set of DNS servers to SEND mail,
and another set to RECEIVE mail -- in such cases the sending
servers must not be listed as MX.]
Do I just add a regular MX record? I saw my other Exchange services
have a normal MX, but they also have a guid looking parent folder one
too.
Click to expand...

Generally yes -- add the MX. Point it to the servers A record. Give
it an appropriate priority (higher NUMBER is lowest priority, that is,
least favored.)
 
In
jm said:
I know this may sound dumb, but I thought when I installed Exchange in
my domain that it would create the appropriate DNS entries. I don't
remember having to create any entries for my other Exchange servers.

I ask because I get NDRs randomly. I can't find the Exchange server
MX in the DNS and I think it may be the reason.

Do I just add a regular MX record? I saw my other Exchange services
have a normal MX, but they also have a guid looking parent folder one
too.

Thanks for any help.
Click to expand...

Who hosts your public DNS? They're the ones who create/modify your domain's
MX records. You don't need MX records in your internal DNS at all. Try
looking up your domain at www.dnsreport.com or post the name here -

Also - a better place for Exchange questions is
microsoft.public.exchange.admin. Mention your version, SP level, etc., and
specific details of your errors/issues (e.g., inbound or outbound mail
issue, exact text of NDR, etc).
 
Back
Top