I have just been trying to reply to an email, when this error message comes up:
"The message size exceeds the maximum limit, please reduce your message size"

This is just a text reply with no attachments, so why is it exceeding the maximum limit?
Fortunately I was able to send a reply by composing a new email from scratch as a workaround, but this shouldn't be happening, especially when I need to reply to urgent work emails. Has anyone else experienced this?
PS: Someone else was available to cover the shift in the email