I have a 2009 Imac with IO S 10.6.8. I have windows for mac 2011 installed.

I used hotmail for all my emails, which is now outlook. My problem is that I cannot attach any documents to my emails through outlook. I can send written emails and receive large attachments, but when I try to attach, an error message comes up after the upload which says "exceeded file size limit", even when the document was 850kb.

I log onto my outlook account through safari browser, then outlook home page. I do not use outlook mail through my 2011 windows.

I have just bought a new surface pro and I can send large attachments through outlook.

I know my imac is old but I want to get a bit more life out of it yet. Any help please?