Have you talked to H since the e-mail? I think it's cowardly (but not unusual) for MLCers to deliver bad news this way. At least your H gave you a bit of warning. My H blindsided me by having me served with D papers -- after a weekend of talking about reconciliation!!
If you haven't already talked to your H, I think you should continue to bide your time. If he doesn't hear from you, curiousity will get the better of him and he will be forced to man up and contact you personally. Until he talks to you, he doesn't even know that you got his e-mail.
Sophie, are you sure that your H doesn't have OW#2 lurking in the background? I hope not, but that's usually the incentive that makes them file.
Please keep us posted. There's lot of good folks on here that can help you through this madness.
