Sometimes, when an employee leaves a company, and you haven't completely replaced them yet, you'd like their computer to continue receiving their POP email, while at the same time allowing another employee to send email from their computer.
This is fairly simple.
If the new employee is already in place, simply configure their email client to receive their email, in addition to receiving the other account's email. Ensure that the new employee is set as the "default" account for sending mail.
On the other hand, if the employee hasn't been replaced yet, here's how to handle that.
Create a new account that you will use to send email. Use someone else who has an email account. We'll set up this account to be able to send, but not receive, so their email stays put on their machine.
Set the new account to be the default.
If you are using Outlook, go into the General Properties, and find the option called "Include this account when receiving mail or synchronizing." Uncheck it.
Change the account settings so that the line that says "Incoming mail (POP3)" simply has the word "localhost".
Now the machine won't get the other employees mail, but will be allowed to send as them, while still picking up email from the old POP account.
As usual, make it your goal to get rid of this extra account — monitor it for a few weeks or a month, notify everyone who sends email to it that a new employee is coming on, etc.
I hope this helps! Let me know what you think about this article.