To change the "From" address of a message in Outlook, create a new account using the address you wish to use as an alternative "From" address. You can create a new account by the following steps:

1. Click on Tools.
2. Click on Accounts.
3. Click on the Mail tab at the top of the window.
4. Click on the Add button then select Mail
5. Put in the display name you wish to appear in the message. This is just whatever you wish to be the name recipients will see with the email address, e.g. "John Smith".
6. Click on the Next button.
7. Type in the alternative e-mail address you wish to use.
8. Click on the Next button.
9. Select whether the server you wish to use is a POP3 or IMAP server and specify the server names for incoming and outgoing email.
10. Click on the Next button.
11. Put in the password if you want the system to remember it rather than prompting you each time, otherwise leave it blank and uncheck "Remember password".
12. Click on the Next button.
13. Select your connection method and click on Next.
14. Click on the Finish button.

If this isn't an email account you will be checking regularly, but just an alias, i.e. an alternative address that points to the same account as one you are already checking, select the account by clicking on it and then click on Properties. Then uncheck "Include this account when receiving mail or synchronizing". Then click on Ok. Then click on Close to close the Internet Accounts window. You might want to send a message with information@somewhere.com as the "From" address, rather than jsmith@somewhere.com, so in the case that information@somewhere.com is just an alias pointing to the jsmith@somewhere.com mailbox, you would uncheck the "Include this account when receiving mail or synchronizing", since it isn't a separate account.

Once you've gone through the above procedure, you won't need to repeat it again and can use the alternate address you specified as the "From" address in messages by the following procedure:

1. Compose a message in Outlook the way you normally would.
2. You may see "To", "Cc", and "Subject" fields, but no "From" field. Click on the Options button.
3. Click on the downward pointing triangle to the right of the Send message using field to see the list of email addresses you can use in the "From" field. Pick the one you wish to use and then click on the Close button.
4. Fill in the "To" and "Subject" fields as usual, edit the message and then click on the Send button. The message will now go out with the address you picked for the "From" field.

[/os/windows/office/outlook] permanent link