======How to tell VPOP3 that some users in the local domain are not to be handled by VPOP3======
In some situations you will have a situation where most of your users are handled by VPOP3, but several users will collect their mail directly from a separate POP3 account on your ISP, even though they may have an email address on the same domain as other users.

For instance, if your domain is **domain.com,** you may have VPOP3 users **fred**, **kate** and **jim** who are all defined as users in VPOP3, but you may also have another user **sarah** who gets her mail directly from a separate POP3 account on the ISP.

If you don't tell VPOP3 about the **sarah** user, then, if a local user tries to send mail to **sarah@domain.com**, VPOP3 will immediately bounce back the message saying that **sarah** is an unrecognised user name. Also, if an external user sends a message to **fred@domain.com** and CC's it to **sarah@domain.com**, then the VPOP3 administrator will get an error message about an incoming message for **sarah@domain.com** since that address is not recognised.

To get around this problem, VPOP3 has the concept of Remote Users. If you create a //Mapping// in VPOP3 of **sarah -> //*REMOTE//**, then VPOP3 knows that **sarah@domain.com** exists, but is managed somewhere else. This solves both problems mentioned above. VPOP3 sends locally sent messages to //*REMOTE mappings// out to the ISP, and ignores incoming messages to //*REMOTE// mappings.

You create the mappings on the **Mappings** page in the VPOP3 settings.

=====Using your ISP's domain=====
If you are using your ISP's domain in your email addresses, so that, for instance, your email address is 'user@isp.com', then you will not be able to create mappings of all the other ISP users to //*REMOTE// as specified above.

In this case, you need to tell VPOP3 that all unrecognised users are remote. To do this, go to **Settings -> Local Mail -> General** and check the box ''Treat locally sent mail for unrecognised local recipients as outgoing mail''

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