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What Is the Maximum File Size for Email

Email Exchange is efficient for business communication but it’s not ideal for large file transfers.

In this article, you’ll know the Maximum File size for Email Exchange and what you can do to send larger file attachments.

What Is the Maximum File Size for Email Exchange

By default, Microsoft has set the maximum size for email messages to 10MB. But for our hosted Email Exchange, we’ve increased the size limit to 50MB - enough to cover the majority of your email needs. Once attachments exceed the size limit, the below errors appear:

Why Is There a Maximum File Size

The purpose of setting a maximum file size is to prevent your business’s users from wasting mail server resources, which can cause the network to slow down. In this way, you’re able to seamlessly enjoy the service at its full capacity.

What Are the Other Options

We advise you to use file hosting services like Google Drive, OneDrive, or Dropbox; which lets you upload files and generate sharing links that you can copy and paste in your emails. If you have a free account with them, you get a free space of 15GB, 5GB, or 2GB, respectively. And if you need more space, you always have the option to upgrade to their paid versions.

You can also increase your Mailbox Plan storage. Contact your organisation’s Admin, or if you’re the Admin, see our How to Change Mailbox Plan guide.

Please let us know if you need further assistance or if you have any questions. We’d love to help!

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