Review for Owl for Exchange by Paul HK Tong
Rated 1 out of 5 stars
Error occur while send email with a large attachment (e.g. 8~10mb)
"The server had an internal error. This is always a problem of the server and not of you or you application."
Try to send on O365 webmail without any error.
To create your own collections, you must have a Mozilla Add-ons account.