DNS and MX Record Help

[jademan83]

I work for a rural internet service provider, and we will be acquiring another local internet service provider soon. The new customers will be dialing up to us and receiving an IP address from us, as well as use our DNS servers. Currently the mail for our company.com is routed to our mail server. On the DNS servers, can I configure them to route any email coming in for the newdomain.com to go to the email server that is now ours from the other company? The DNS servers are running Slackware linux 10.0.

Any help is appreciated and let me know if you need any further information,

Thanks

[thaddaeus]

If I understand correctly you wish to basically redirect mail goin to newdomain.com mail servers to the company.com mail servers, if so you just need to copy/past the mx records from company.com to newdomain.com, this will route all mail from newdomain.com to the servers for company.com...or if I have it backwards just do the reverse. I'm guessing you'll have to configure the mail servers to take the new domain also but that I don't know how to do. Hope this helps.

ReX

[jademan83]

I'm not sure I posted the question very clearly, but what is going to happen is that we are going to be continuing to provide internet and email services to our customers, and the customers email addresses are xxx@abc.com. When we acquire the new ISP, we will provide them internet access, and would like for them to continue using their email addresses, xxx@def.com. I just wondered if there was some way to modify the DNS records and MX records so that when someone sends an email to xxx@def.com, it knows to come to the mailserver for the def.com users, which will be a separate email server from our original customers. I am thinking that I can setup a named.def file for the domain on the DNS servers, so the www.def.com is still up, and the emails for def.com customers will just get routed to the necessary email server via MX records.

Thanks for your help

[jademan83]

I have posted with this problem previously, but I came up with a solution and just wanted to know if anyone out there thought it would work. Here it is:
The company I work for will be acquiring another ISP soon, and I want to be able to keep the original email addresses of the new customers, as well as continue with the email addresses of our customers. The email addresses of the company we are acquiring is xxx@def.com, while the email address of our customers is xxx@abc.com. We will hopefully be getting the email server of the other company, to use to continue for the new customers' email purposes. We are running DNS servers with Slackware 10, and I want to setup a zone (named.def) for the def.com customers and add the MX records to send to the email server of the new company. Consequently, the email server is running RedHat 7. Will new email that comes for xxx@def.com be routed to the email server for def.com customers? Am I missing anything? Is there an easier way to do this?


Thanks for any help you can provide.