If you recently created a new Outlook.com account, a low sending quota is a temporary restriction which is upgraded to the maximum limit as soon as you establish credibility in the system.
Why can't I send more emails in Outlook.com?
Having a daily email sending limit is part of our efforts to reduce spam and we may sometimes ask you to verify your identity.
To help you establish credibility and increase your Outlook.com sending limits, you should ensure that your Microsoft Account security information is as complete and up-to-date as possible. This builds upon your profile strength.
Make sure that all your information (like phone number and alternate email address) is updated on your account.
Make sure that you have updated your account's profile information (like Profile Name, Photo, Date of Birth, Gender, etc).
Make sure the password which you have created is a combination of upper case/lower case letters, numbers and special characters.
Make sure that the people you send emails to are added to your Contacts on Outlook.com.
Communicate frequently with your Contacts.
Use the Microsoft Authenticator app. The Microsoft Authenticator lets you quickly and securely verify your identity online, for all of your accounts.
Visit https://account.live.com/reputationcheck and we'll send you a verification code in a text message. This action helps us eliminate spam.
What's the file attachment size limit in Outlook.com?
The attachment size limit for files is 34 MB.
You can also share a file from OneDrive. This way, your recipients can receive larger files and collaborate on it in real time. The attachment size limit for OneDrive files is 2GB.
Read more about how to Attach files in Outlook.com.
How else can I increase sending and storage limits?
You can increase daily email sending limits by upgrading your Outlook.com account with an Office 365 subscription. This also gives you:
Advanced email security
50 GB mailbox per user.
For help on "Quota Exceeded, your account is above quota limits" read Storage limits in Outlook.com.
Need more help?
Note: The sending limits and credibility of any third party connected accounts depend upon your service provider.
You can also try the Microsoft Virtual Agent.