How To Add an Additional Mailbox in Outlook 2013

Adding an Additional Mailbox in Outlook 2013 is very similar to the process in previous versions of Outlook but not exactly the same. Here’s how to do it.

Adding an Additional Mailbox in Outlook 2013 is very similar to the process for Outlook 2010, Outlook 2007 and Outlook 2016. I just installed Outlook 2013 and need to add another mailbox, so I figure I’ll take some screenshots and show you the new process.

How to add an additional mailbox to Outlook 2013

1. Open Outlook 2013 and Click File.

Add Mailbox Outlook 2013 - Click File

2. Click Info, Account Settings, Account Settings.

Add Mailbox Outlook 2013 - Click Info Account Settings

3. Highlight your current email account and click Change.

Add Mailbox Outlook 2013 - Click Change

4. Server settings box should appear, click More Settings.

Add Mailbox Outlook 2013 - Click More Settings

5. Click the Advanced Tab and Click Add.

Add Mailbox Outlook 2013 - Click Advanced, Add

6. Type in the name of the additional/second mailbox you want to add and click OK. In my example, I’m adding a shared mailbox we use for RFP responses.

Add Mailbox Outlook 2013 - Type Mailbox Name Click OK

7. Confirm the new mailbox was resolved by the server, and Click OK to save.

Add Mailbox Outlook 2013 - Click OK to Save

8. Here we are back on the Server Settings screen. Click Next.

Add Mailbox Outlook 2013 - Click Next

9. Click Finish.

Add Mailbox Outlook 2013 - Click Finish

10. Click Close on the Accounts Settings page.

Add Mailbox Outlook 2013 - Click Close

11. Your new additional mailbox should be listed under your main account or PST files if you have already added to your account.

Add Mailbox Outlook 2013 - New Additional Mailbox Listed



  1. chris

    tried the above….did not work. MSFT “engineers” have NO CLUE on how to add one of my Hotmail accounts. What a joke!

  2. Jason

    Chris, that’s because you’re *probably* dealing with a different account, not a different mailbox. Unless you work at Hotmail, I highly doubt you have multiple mailboxes that a single account is designed to access on their server. You would have to add an account (at the step where you click “Change…” you would instead click “New…”) for each account you wished to access.

  3. chris

    Hi Jason,

    regardless of how I worded it, the MSFT employees were unable to assist me – I gave them access to go through the step by step process as they were watching!! I was hoping that someone would be able to help me as the MSFT webpage was not helpful either.

  4. Jacqueline

    I wanted to say thank you for your complete steps to add a mailbox in Outlook. I already knew how to do it but I needed to send a possible non technical person instructions via email. I appreciate very much the time you took and the full picture details.

  5. surinder

    Worked a treat! perfect!!!

  6. KMP

    I was able add the folder I needed, but when I try to open it it says “Cannot expand the folder”.

    • KTHD

      did you ever get an answer to correct this?
      Have the same thing

    • Tiina

      in that case you’re missing user rights for the mailbox in question. first you need to contact admin to gain the access.

  7. Scott W

    What is the total amount of mailboxes that you can add?

    • Scott W

      Well I just added 15 additional mailboxes so the exceeds what I need anyways. I noticed in Office 2007 that you could not do more than 9.

  8. Darlene

    Thanks for the easy to follow steps. I actually had very simple instructions from a previous attempt, but didn’t trust them. Your detailed pictures made sense of my simple steps, which I have now expanded on so someone besides me can translate.
    Glad google led me here.

  9. Luleska

    I have Outlook 2013 and followed all the steps up to the “More Settings” box.
    Once there, I click on the “Advance” tab, but I do not have the “Add” button option.
    I only show three things: Server Port Numbers, Server Timeouts and Delivery.

    Any thoughts?

    • hamish

      Had the exact same issue….what is the way forward?

  10. Joice

    In outlook 2013,If add option is got graded out(inactive).So how we will make it active?

    • Sudheer

      Hey Did you get any response for this issue….I have exactly same add button was grayed out..

  11. Palanisami

    Great, your post guided me perfectly! Thanks a ton (equivalent to tonnes of cash) :-)

    • Steve Krause

      Did I hear the word Cash? ;)

  12. Cindy

    Thanks for the clear, concise and excellent how-to!

  13. Christian

    The description worked fine for me! Thanks a lot!

  14. Regina

    Worked like a champ for me.

  15. Kim

    I am using Outlook 2013 and have added a new shared mailbox. However, when I try to open it, I get the message “CANNOT EXPAND THE FOLDER”.

    I have restarted Outlook, but still am unable to open the mailbox.


    • pankhuri

      Hey I faced a similar issue today.
      Were you able to get your answer.Please give me the solution as well.
      I am unable to expand the folder.

      • mary knight

        has anyone resolved this I am having the same problem

  16. jek c.

    just wanted to let you that this helped me. thanks a lot!

  17. Namazu

    Thanks – perfect instructions! :)

    • Steve Krause

      Awesome! Glad I was able to assist. ;)

  18. Nathan

    Hi i am from India , its very useful , thank you so much

  19. Likhita

    Thanks for the solution !!


  20. Rahul

    Thanks, worked for me mate.

  21. Mr. Lake Lure

    Thanks, worked perfect!

  22. romesh

    i have added a new mail box, but it is not showing any feature like Inbox, Sent Items etc.
    how to get it in outlook 2013 ?

  23. RTBob

    Instructions were good if using Exchange. However nothing here addresses POP or IMAP.
    Several responders above are having issues due to that fact (me too).

  24. Ethan


    Issue i am having begins after I am in account settings and designate which email i want to “change.”

    When I am in the “Change Account” window the -More Settings- button opens a different dialogue page than the one that is shown above. Rather than General-Advanced-Security-Connection—–i see General-Outgoing Server-Advanced.

    Any reason why that is?

    I have established all imap-incoming and outgoing servers already.

    Any help would be much appreciated!

    Thanks in advance

  25. Vi Binh

    Thanks a lot, Steven. Your post helped me get it right on my first try – Thanks again!


    It was really helpful, generally for this kind of support , we used to call our IT Team. But today I do it by myself.

    Thanks a lot !!!

  27. Shelly

    Hello Steve,
    Why didn’t you choose to “+Add Account” under your Exchange Account (2nd screenshot)?

  28. Shaun Shanmugan

    Perfect! Well explained!

  29. John

    Thanks. This worked perfectly!

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