Can I copy content from my own blog and submit it to EzineArticles.com? Is this allowed? Or does every submission to Ezine need to be 100% unique and never posted anywhere else?
You can submit them to Ezinearticles if you can prove them you are the owner of the blog you copied content from. However you are killing yourself by doing that. The content you are going to publish on Ezinearticles will outrank the one under your blogs. Ezinearticles itself got more authority than most websites and its content are tend to rank highly in Google for most long-tail key phrases.
Yes, submission on ezine must be unique ( your own content ) but don't submit all your article, because no one will read on your blog, but read on ezine no, it won't and that's very smart of you spamming your site
Ezine artcile is very strict. It would never accept such kind of content. They almost take one week to publish article after submission in the initial stage, and during that period they make thorough probe as to duplication of content. So if at all you want to publish on ezine, you need to completely rewrite the article, and then there are chances that it may be approved.
They do not accept duplicate content submission but allowed website owner to submit their original written content to them, even the one publishing under their website. (If they can prove it.)
yes you can submit it to ezine, but you need to prove that the article is yours. You can put your pen name in your article on your blog