Labels will generally accept packages from artist managers, attorneys and publishers with whom they have an “ongoing relationship” without these folks asking the labels permission. So, if you have any of these people working for you, arrange for them to send a package on your behalf.
TIP: Beware of Law firms who offer to submit your music to record labels on your behalf for a fee. We’ve seen hundreds of these “packages” (which you have to create and pay for, then give to the attorney to send out) with a cover letter from the attorney on their stationery. Yes, they are opened and reviewed but in our experience its unusual for the law firm to follow up and its rare for anything good to come via this route. Think carefully before dropping a heavy fee (over the years we’ve heard of law firms charging around $5,000 for this).
And while we are at it, beware of websites who offer to critique your songs for a fee. We’ve known some less scrupulous former colleagues in A&R at labels where we worked for who used to have a nice sideline going on, making extra cash doing this. We don’t recall hearing any of them actually signing a writer or artist as a result. Poof! your hard earned money is wasted. We really hate those sites.
The only decent site we know of which will review and forward songs is www.taxi.com. We recommend them.