Get a quick breakdown of can't send or receive email. Important If your Microsoft cloud storage is full, you cannot send or receive email. Messages sent to you while your storage was full are bounced back to the sender and are unrecoverable. Check your mailbox storage to see what's taking up space. Learn more about recent changes.

Manage shared mailbox settings in new Outlook If someone in your organization is sharing a mailbox with you, you might want the ability to manage the settings (such as Categories, Notifications, Rules, and Automatic Replies) for that mailbox. You can do this in new Outlook by adding the mailbox as an account.

An Outlook In-Place Archive, or Online Archive, mailbox can store older email messages where they won't occupy space in your primary mailbox. This specialized mailbox appears alongside your other mailbox folders in Outlook.

Note Cannot Send Mail - The message was rejected by the server Cannot Send Mail - Your mailbox is full

Use rules to automatically perform specific actions on email that arrives in your inbox. For example, you can create rules that will change the importance level of messages as they come in, automatically move them to other folders, or delete them based on certain criteria. Select a tab option below for the version of Outlook you're using. What version of Outlook do I have?

Note If either your Outlook.com mailbox or your OneDrive storage is full, you cannot send or receive email. Check your Outbox or your mailbox storage to see what's taking up space. Learn more.

What are recent Outlook fixes and workarounds? How do I open Outlook with the /profiles switch? Get Copilot's help with fixes or workarounds.

How do I open Outlook with the /profiles switch? What are fixes for new Outlook for Windows? Make a fixes or workarounds reference card for me.

Forward all messages to another account in Outlook on the web Messages that are forwarded will appear to be forwarded from you. When someone replies to a message that has been forwarded, the reply will be sent to the address the message was forwarded from, not to the original sender. At the top of the page, select Settings . Select Mail > Rules.

Do one of the following: To turn on forwarding, select Enable forwarding, enter the forwarding email address, and select Save. Note Select the Keep a copy of forwarded messages check box if you want a copy of the original message to remain in your mailbox. To turn off forwarding, clear Enable forwarding and select Save.