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[ask] Send Email Outside - 5.Nov.2008 5:02:56 AM

romadona

Posts: 11
Joined: 5.Nov.2008
Status: offline

Hello expertise exchange

i'm trying to create lab with

- 1 DC & Internal DNS server
- 1 ISA server as proxy and firewall server
- 1 Exchange server as a mail server.
- internet connection using ADSL.

everything is ok to setup,my client is able to use internet through isa server.
every client is ok to send email in internal.
now if i want to send email to another domain in external (ex.yahoo) is there anything more to prepare or create.
(just for information I have domain and dns management in www.co.cc and email server using google apps.)

thanks For helping

Post #: 1

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RE: [ask] Send Email Outside - 5.Nov.2008 12:19:50 PM

ravisha_22

Posts: 174
Joined: 16.Sep.2008
Status: offline

For external mail delivery, you need to setup either DNS forwarders in internal DNS server or make the exchange server use External smarthost for delviery.

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Ravishankar

(in reply to romadona)

Post #: 2

RE: [ask] Send Email Outside - 6.Nov.2008 10:49:32 AM

de.blackman

Posts: 1478
Joined: 4.Apr.2005
From: Toronto, Canada
Status: offline

In exchange 2003, as long as the exchange server can resolve the MX record for external domains, nothing else needs to be setup for outbound emails. You do not need to configure a smarthost unless you actually use one! As best practice, do not configure a smart host on the SMTP virtual server especially in an organization with multiple exchange servers. The reason for this is because of public folder replication. Public folder replication uses the SMTP virtual server to send/receive data between other exchange servers. If a smarthost is configured on the virtual server, then all public folder replication messages will be passed to the smarthost as opposed to directly to the exchange server(s). Use an SMTP connector if you are to use a smarthost!!

To verify if your exchange can actually resolve external MX records, try this and post the results please:

Open a command prompt and type NSLOOKUP then press enter
type SET Q=MX and press enter
Then type any external domain (for example YAHOO.COM or HOTMAIL.COM) and see if the results show the MX records

Example result for hotmail:

C:\>nslookup
> set q=mx
> hotmail.com
hotmail.com     MX preference = 5, mail exchanger = mx1.hotmail.com
hotmail.com     MX preference = 5, mail exchanger = mx2.hotmail.com
hotmail.com     MX preference = 5, mail exchanger = mx3.hotmail.com
hotmail.com     MX preference = 5, mail exchanger = mx4.hotmail.com

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(in reply to ravisha_22)

Post #: 3

RE: [ask] Send Email Outside - 6.Nov.2008 11:13:54 PM

romadona

Posts: 11
Joined: 5.Nov.2008
Status: offline

Thanks for Reply

i'will test it and post the result

Ro

(in reply to romadona)

Post #: 4

RE: [ask] Send Email Outside - 7.Nov.2008 5:55:38 PM

romadona

Posts: 11
Joined: 5.Nov.2008
Status: offline

Hi There

this is the result of nslookup My Exchange

C:\Documents and Settings\vnadmin>nslookup
Default Server: tb-dc01.timexxx.com.com
Address: 172.16.10.3

> set q=mx
> yahoo.com
Server: tb-dc01.timexxx.com.com
Address: 172.16.10.3

DNS request timed out.
timeout was 2 seconds.
*** Request to tb-dc01.timexxx.com.com timed-out
> hotmail.com
Server: tb-dc01.timexxx.com.com
Address: 172.16.10.3

DNS request timed out.
timeout was 2 seconds.
*** Request to tb-dc01.timexxx.com timed-out
>

i've forward DNS internal to my ISP DNS

if i have to set smarthost for delviery ,so who will be the smartshost

please advice,

Thanks

(in reply to romadona)

Post #: 5

RE: [ask] Send Email Outside - 7.Nov.2008 6:01:03 PM

Exchange_Geek

Posts: 1026
Joined: 31.Dec.2006
Status: offline

Ideally the smart host IP address should be entered as smart host on connector
/ smtp vs. You should contact your smart host to ask them for a particular ip address where you would forward smtp emails.

(in reply to romadona)

Post #: 6

RE: [ask] Send Email Outside - 9.Nov.2008 10:59:13 AM

romadona

Posts: 11
Joined: 5.Nov.2008
Status: offline

Thanks

i using my ISA server as a Smarthost, my email is definitely able to go out ( send emal to external address)

- but when i reply it back, i cant receive it.
ex. i send from my lab to yahoo account, my yahoo receive that mail,but when i reply it back,my user in lab didn't receive that mail.

now,there is something that i miss to set.

thanks for reply my question

(in reply to Exchange_Geek)

Post #: 7