The venerable lit journal Poetry has the following invitation on its site:
In June, July, and August 2007, POETRY will only consider work from poets who have not previously appeared in the magazine. We encourage writers new to these pages to send work to:
POETRY
444 N Michigan Ave., Ste. 1850
Chicago, IL 60611
Of course, it’s still Poetry, so one’s chances of acceptance are still very low. But why not? Now is the time to submit something, if you have it.