There are two ways to do this.
One by filtering rule. For the user in question set up a filtering rule, that copies the mail to a local account, then continues processing of inbound email.
The other is if there are more than one domain in play, f.ex. mydomain.com and mydomain.local - then you can besides the above, forward the email to two different mail addresses.
Thirdly you can do this by setting up mailing lists - but for individual users this is really not to recommend, since you end up with a lot of lists in the end.
<P>There are two ways to do this.</P>
<P>One by filtering rule. For the user in question set up a filtering rule, that copies the mail to a local account, then continues processing of inbound email.</P>
<P>The other is if there are more than one domain in play, f.ex. mydomain.com and mydomain.local - then you can besides the above, forward the email to two different mail addresses.</P>
<P>&nbsp;Thirdly you can do this by setting up mailing lists - but for individual users this is really not to recommend, since you end up with a lot of lists in the end.</P>