how to "split" a domain's email between multiple locations

kishorerhce508 · 06-18-2009, 04:08 PM

Hi all, this is Kishore. I need help for u people in this concept.

I configured a domain ex. kkd.com with some users with user@kkd.com mail ids and able to send/receive mails local systems and from external domains like gmail.com,yahoo.com.... and now i want to configure some users in other server located in US with same domain kkd.com

Now how can i send mails to the users that are in us server
ex. my server I had user user@kkd.com and my US server had a user new@kkd.com when I send mails from gmail or yahoo.com the mails must be sent to users mailbox I can send mails to user@kkd.com but unable to send mails to new@kkd.com (US server user) how can I fix this issue.I need help regarding this.

Iam using REDHAT RHEL 5.1 OS AND SENDMAIL AS MY MAIL SERVER...

THANKS AND REGARDS
KISHORE KUMAR DATLA

bathory · 06-18-2009, 05:18 PM

Who is the primary mx for the domain kkd.com? I guess it's your server, as you can receive mails from gmail etc.
Now the server in US should have a FQDN (ex. us.kkd.com). What you can do is to use virtusertable to distinguish local from remote users:

Code:

user@kkd.com user
new@kkd.com new@us.kkd.com

The line for the local user is not needed, but it's good to have so you can have an overview of all your users (local and remote).
After editing /etc/mail/virtusertable you should run

Code:

makemap hash /etc/mail/virtusertable.db < /etc/mail/virtusertable

and restart sendmail

kishorerhce508 · 06-19-2009, 12:21 AM

Quote:

Originally Posted by bathory

Who is the primary mx for the domain kkd.com? I guess it's your server, as you can receive mails from gmail etc.
Now the server in US should have a FQDN (ex. us.kkd.com). What you can do is to use virtusertable to distinguish local from remote users:

Code:

user@kkd.com user
new@kkd.com new@us.kkd.com

The line for the local user is not needed, but it's good to have so you can have an overview of all your users (local and remote).
After editing /etc/mail/virtusertable you should run

Code:

makemap hash /etc/mail/virtusertable.db < /etc/mail/virtusertable

and restart sendmail

Hi Bathory thanks for your valuable suggestion. i had another query actually i dont know the US doamin name and they r not providing it to me and they provided only public and private ip of that server with that ip I have to configure.
How can i transfer mails to their users through ip address please help me in this and my mx record is : ex: IN MX 5 kkd.com
I am using RHEL 5.1 and sendmail as mail server......

bathory · 06-19-2009, 12:49 AM

If you have only the public IP of the other mail server, then the entry in virtusertable should be changed to:

Code:

new@kkd.com new@[x.x.x.x]

kishorerhce508 · 06-19-2009, 12:19 PM

Quote:

Originally Posted by bathory

If you have only the public IP of the other mail server, then the entry in virtusertable should be changed to:

Code:

new@kkd.com new@[x.x.x.x]

Hi Bathory, I am very very thankful for your valuable suggestions and for your fast response. I followed your suggestions and finally got the result i.e. earlier when I send a mail to the user I would get a error like unknown user or fatal error in address now I am not getting any errors. Now I had another issue the user is not able to receive message send by me can u help me in this.........

my server kkd.com is Linux server and the us server is Windows 2003 with outlook and exchange for mails................

I will be waiting for your mail

THANKS AND REGARDS
KISHORE KUMAR.D.

bathory · 06-19-2009, 03:37 PM

Check your logs (usually /var/log/maillog) to see if the mail is sent to the Exchange server. Then it's a problem for the admin there to setup Exchange so it can deliver the mail to the user.
You can also use telnet to the remote server to test delivery:

Code:

telnet x.x.x.x 25
ehlo kkd.com
mail from: user@kkd.com
rcpt to: new@kkd.com
data
subject: Test
It's a test
.
quit

Write the commands above one by one waiting the server response after each command. The dot "." is necessary as it means the end of the message.

kishorerhce508 · 06-22-2009, 11:34 AM

Quote:

Originally Posted by bathory

Check your logs (usually /var/log/maillog) to see if the mail is sent to the Exchange server. Then it's a problem for the admin there to setup Exchange so it can deliver the mail to the user.
You can also use telnet to the remote server to test delivery:

Code:

telnet x.x.x.x 25
ehlo kkd.com
mail from: user@kkd.com
rcpt to: new@kkd.com
data
subject: Test
It's a test
.
quit

Write the commands above one by one waiting the server response after each command. The dot "." is necessary as it means the end of the message.

Hi Bathory,I thank you once again finally I learned many things from you. Thanks for providing me valuable information. Finally i didn't succeed, i used telnet command for checking status of port 25 in linux server it is working but from windows server no reply I think it's problem in windows server so I will ask them to enable the port 25 and check the status...

TAKE CARE BYE............

Thanks and regards
KISHORE KUMAR .D.