How To Open Another Mailbox in Office 365 Webmail

If you have access to multiple mailboxes, and you’re used to using Outlook where you can see them all together, it’s not immediately obvious how to see them all when using Outlook on the web. But, it’s easy!

First, go to http://mail.office365.com and sign in

Click on your avatar in the top right hand corner, and choose Open Another Mailbox

Type the name of the mailbox into the new window

The mailbox will open in a new browser tab

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Further reading

How to password protect a Zip folder

If you need to share a document with an external third party, you should do so securely. Sometimes password protecting and emailing the document is not such a good idea (see Why you shouldn’t password protect your Office Documents). You might consider instead giving them temporary access to the folder itself (see How to share

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Switch Off Download Shared Mailbox

If you have access to multiple other mailboxes, you may find that Outlook starts to run slowly, that your hard disk starts to fill up, or worse – the emails in those mailboxes don’t sync properly.

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