This article illustrates how to send as a domain/user alias in Outlook 2013 and 2016. If you have user aliases set up for your account, this section describes the steps necessary to send email from the alias names.
For more information, please read the differences between a user alias and a domain alias. If you do not have an alias name for your account, please contact your company network administrator to set up an alias.
If you understand what an alias is, the next question is "How do I respond from different email addresses?" The steps below describe the set up process in Microsoft Outlook. Due to the hundreds of email clients available, the settings below should provide a good description of the process for the other applications.
Please contact your network administrator for further instruction. Please note: This can ONLY be performed in Outlook and not in Outlook Web Access. Also, the outbound email for aliases must be sent via POP3.
1. Open Outlook 2013.
2. Click the File tab (located in the upper left hand corner of the page) > Info > Choose Account Settings.
3. Within the Account Settings drop down menu, select Account Settings.
4. Under the E-mail tab, click New.
5. Click the radio button Manual setup or additional server types and then select Next.
6. Choose POP or IMAP and then select Next.
7. Under Add Account, Fill out the following:
Your Name: First, Last
E-mail Address: Full email address (of the alias that you would like to send from)
Account Type: POP3
Incoming mail server: xxxx
Outgoing mail server: na02.msexchangeoutlook.com
User Name: Full email address (of your primary login address)
Password: Your password
Check the box for Remember password. Upon completion select More Settings.
8. Under E-mail Settings, select the Outgoing Server tab and check the box that says "My outgoing server requires authentication".
9. Select the Advanced tab. In the Use the following type of encrypted connection: select TLS. In the Outgoing server (SMTP) field enter 587.
10. Click OK.
11. Select Next > to test the Account Settings. The incoming should FAIL and Outgoing should have a green check mark.
12. Deselect the box under Test Account Settings. Select Next.
13. Congratulations! You have successfully set up a POP account to send out as your Alias. Choose Finish.