Almost all email systems have limitations on the size of emails that can be sent through them, and this also applies to Kundo Mail. The limits are set by the third-party systems we use to send and receive emails, so unfortunately, we cannot increase them.

However, with our Microsoft 365 integration, our customers can now set their own size limits for emails, providing more flexibility and control over your email flows.

Outgoing emails

The limit for all content in outgoing emails (including attachments) is 24 MB. Additionally, individual attachments in outgoing emails have a limit of 17 MB.

If you try to send an email that exceeds this limit, or attach a file that is too large, you will receive an error message directly in Kundo. With the Microsoft 365 integration, you can adjust these limits to suit your needs.

Incoming emails

The limit for incoming emails is 40 MB. There is no limit for individual attachments in incoming emails, only the overall 40 MB limit for the entire email applies. This size limit can also be adjusted using our Microsoft 365 integration.