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There are different methods you can use. <br />
<br />
Some ISPs provide something like a &quot;control panel&quot; for you to administer your external mailbox, and from there you can do auto-responder and email forwarding. There are pros and cons; you normally need to set the auto-responder for every user who has a mydomain2 address so if you have large number of user then this may not be a good idea. The good thing about this is email sent to mydomain2 will be forwarded automatically to mydomain1 before reaching your server, thus you can remove your mydomain2 accounts on your server.<br />
<br />
Another way is to do this internally on Exchange or Outlook by setting up rules. But then you need to keep both mydomain1 and mydomain2 accounts thus increase administrative overheads.<br />

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There are different methods you can use.

Some ISPs provide something like a "control panel" for you to administer your external mailbox, and from there you can do auto-responder and email forwarding. There are pros and cons; you normally need to set the auto-responder for every user who has a mydomain2 address so if you have large number of user then this may not be a good idea. The good thing about this is email sent to mydomain2 will be forwarded automatically to mydomain1 before reaching your server, thus you can remove your mydomain2 accounts on your server.

Another way is to do this internally on Exchange or Outlook by setting up rules. But then you need to keep both mydomain1 and mydomain2 accounts thus increase administrative overheads.


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My customer have Exchange 2003 and two email domains. some users have email addresses for both domains. mydomain1.com and mydomain2.com<br />
<br />
We are going to close mydomain2.com<br />
<br />
When somebody (known or unknow people) sends to mydomain2.com we want the mail to be delivered but would like to send an answer that in the future they need to send to mydomain1.com instead.<br />
<br />
How can we do that in a smart way?
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My customer have Exchange 2003 and two email domains. some users have email addresses for both domains. mydomain1.com and mydomain2.com

We are going to close mydomain2.com

When somebody (known or unknow people) sends to mydomain2.com we want the mail to be delivered but would like to send an answer that in the future they need to send to mydomain1.com instead.

How can we do that in a smart way?

Have to e-mail addresses. How to notify every sender  that one off them is to be deleted soon?

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.