554 5.7.0 Message Size Violation
I'm trying to send an email with a 4.7MB attachment (zip file, with a single file within) which is getting bounced by iCloud.com (554 5.7.0 Message Size Violation).
Looking at the limits, I should be able to send/receive email with attachments up to 20MB? Why is this email being bounced because of its size?
Any help would be greatly appreciated.
Cheers
iCloud.com Email Account