Sync and backup POP3 accounts via

I have a POP3 account configured on my main computer and on my laptop. I noticed that it does not keep track of my read/unread status and other things such as Sent Items and other folder that I have. It also does not support bringing over the contacts and appointments.

How can I easily sync these changes?

POP3 in buttonPOP3 accounts have the following characteristics which are usually considered problematic or a hindrance;

  • Locally stored pst-files need to be backed up regularly.
  • Read/unread status doesn’t sync between computers.
  • Folder hierarchy doesn’t sync between computers.
  • Sent items doesn’t sync between computers.
  • Contacts and Calendar is not available on your smartphone.

While many of these issues can be solved by using IMAP instead, having a small mailbox on the server is usually the reason why POP3 was chosen in the first place.

All of these issues can easily be solved when you set the delivery of your POP3 emails to an mailbox. You can continue to use your POP3 address if you want.

Step 1: Sign up for an mailbox

Microsoft Account buttonChances are, you already have a Microsoft Account and in that case, you also already have an mailbox. Just visit and sign in with your Microsoft Account.

If do not have a Microsoft Account yet or if you want to use a separate mailbox to sync your POP3 mailbox, then you can sign up for a new mailbox here;

Click on the “Get a new email address” link to create a mailbox with an address. This is needed to be able to configure it in Outlook.

Creating a new Microsoft Account with an address.
Creating a new Microsoft Account with an address.

Step 2: Configure the account in Outlook buttonStep 2 and Step 3 can be swapped, so when you already have your POP3 account configured in Outlook; Don’t worry.

Use File-> Add Account to add your account to Outlook by specifying your @outlook address.

If you are running into issues during this process see; Account Setup fails for accounts.

A common issue is that your primary alias isn’t set to an @outlook address but a custom domain. You can verify and set (or add) your primary alias by visiting; Manage how you sign in to Microsoft

Step 3: Configure the POP3 account in Outlook

POP3 Account buttonIf you haven’t already, you can now add your POP3 account to Outlook as well.

You can do this via File-> Add Account and then specify your POP3 address.

When your mailbox also supports IMAP, you may need to use the “Advanced options”, to set up your account manually and choose POP3.

Step 4: Set the delivery for the POP3 account to the mailbox

Default Delivery Location buttonNow that you have both accounts configured in Outlook, we can more or less combine them into 1 by adjusting the following configuration settings;

  1. Open your Account Settings;
    File-> Account Settings-> Account Settings…
  2. On the Email tab, select your POP3 account and at the bottom click on the “Change Folder” button.
  3. Set the delivery location to the Inbox folder of your mailbox.
  4. If your POP3 account isn’t set as the default account, click on the “Set as Default” command.
  5. Select the Data Files and verify that the mailbox is set as the default data file.

Step 5 (recommended): Forward emails and Send Only account

Forward buttonAlthough not completely necessary, it is recommended to create a server-side forward for your POP3 account to your address and configure your POP3 account as Send Only.

This will not only make you receive emails faster but also prevents you from getting duplicates when you want to use this configuration on multiple computers.

Creating a forward is usually done quite easily within the website based mailbox for your POP3 account. You can ask your ISP how to do this in case you can’t find it.

Configuring your POP3 account as a Send Only account can be done via;

  1. Send/Receive-> Send/Receive Groups-> Define Send/Receive Groups
  2. In the Send/Receive Groups dialog press: Edit…
  3. In the Send/Receive Settings dialog, select your POP3 account and untick the “Receive mail items” checkbox.

For more details see; Exclude account from receiving (send only account).

Step 5 (alternative): Do not leave a copy on the server

Remove from Server buttonIf you can’t configure a server-side forwarder for your POP3 address, an alternative would be to configure your POP3 account to not leave a copy on the server for the POP3 account.

If you leave copies on the server and also make this configuration on another computer, you’re POP3 emails would be collected by both computers and put into your mailbox and thus end up with duplicates.

Step 6 (optional): Move your POP3 data to the mailbox

Move buttonNow that everything is configured correctly, you can move your items from the pst-file to the mailbox.

To easily move your Calendar items, change you calendar view to the List view;

  • View-> Change View-> List.

Since the mailbox uses a 2-way sync protocol, the changes are uploaded to the on-line mailbox.

Once you’ve moved all your data from your POP3 pst-file, you can disconnect the pst-file from Outlook via;

  • File->Account Settings-> Account Settings…-> tab: Data Files-> select your pst-file-> button: Remove

Outlook on another computer, tablet or smartphone

Sync SmartphoneWhen you now configure your laptop with both the POP3 and account in the same way, the items will be cached to the laptop too and any changes will be written back to the server.

Your Calendar and Contacts folders will now sync as well so you can now have your Outlook Calendar and Contacts available on your smartphone too by configuring your mailbox on your smartphone.

You can do this by using the native Mail app on your smartphone and/or tablet or by installing the Outlook for iOS or Outlook for Android app.

Next step? Switch to completely

Switch? buttonNow that you have everything in your mailbox and your POP3 address set to forward to your address, why not switch to completely?

To do this, you can simply remove your POP3 account from Outlook and continue sending out with your address.

As the POP3 address is configured as a server-side forwarder, you’ll continue to receive emails from people that are still sending to this address. You can then reply with your new address to inform them of the switch.

Things to note

Behavior & Limitations buttonWhen using this method you’ll have to be aware of the following;

When sending, verify that the POP3 account is used for sending or you’ll be sending out with your @outlook address instead.

To prevent this from happening, you can use the following macro; Check sending account address before sending email.

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