Forum Moderators: phranque
Regards.
In this case, we can only implement the correct solution, and wait for them to tweak their algorithms. For the past two years at least, there has been *much* discussion here about 302s being used -- intentionally or unintentionally -- to "hijack" pages, causing the redirecting URL to appear to be the correct URL for the content of the page that it redirects to. Google is only now getting this under control, and Yahoo fixed it only last year. A search on WebmasterWorld for "302 hijacking" will turn up several days' worth of reading.
There is no benefit either to "submitting" a redirected domain/URL, or to "submitting" *any* URL which has no incoming links; Notice that the Search Engine Submission forum here at WebmasterWorld is now deprecated, since "search engine submission" went out with the 1990s. Search engines now follow links; no incoming links, no significant or sustained search results positions for your pages.
The purpose of purchasing those alternate domain names is for "branding", for type-in traffic, and to prevent others from purchasing them and trading on your good name -- domains are cheaper than legal cases. So, you purchase them to capture traffic from people "guessing" or typing in your domain incorrectly, and to preserve your brand name.
Whenever you have a question about the correct server response for a given situation, go to the source -- the HTTP protocol specificiation [w3.org]. It will confirm that as encyclo posted, a 301 is the correct response, and a 302 may cause you problems.
Jim