With Kazeli, you can send and receive messages up to 20 megabytes (MB) in size. However, the precise amount allowable will depend on the attachment.
When you add an attachment, the size of a file may increase because transport encodings are automatically added. (Transport encodings are the information that allows your message to be safely sent and read.)
This means that in some cases, attachments that are 17 to 20MB in size may push the total message size above 20MB.
Please note that you may not be able to send larger attachments to contacts who use other email services with smaller attachment limits.