We are mostly settled with our new provider now. However, we're having some network problems (pages are transferring slowly, downloads and pages being cut off, etc.) and are working with the provider to try to find out what's up (it's not us.) We'll have this fixed as soon as possible.
To those of you who still aren't getting e-mail notifications:
I have watched the mail logs for a while, and found that a few services were still looking at the wrong DNS information for LJ, and thus were temporarily "deferring" the e-mail. Most of you shouldn't be seeing this anymore, but some are. This isn't our problem, and your e-mail service should start working soon.