roboshark

If it was a mutual breakup, I see no reason not to email (i.e. presumably, neither of you is holding a grudge against the other one). As long as you really have no intention of getting back together, it'd be fine. On the other hand, although I've tried contacting my exes in the past, it never went anywhere (we didn't become "friends" or whatever.) It was quite pointless in the end. We even met, and in the course of the conversation I realized I couldn't actually care how she was doing now, who's she married to or whatever. But maybe that's me.

I'd have opted for a phone call. This way you avoid the embarassment of her never emailing back, and the tormenting uncertainty of whether she got your mail and threw it away in disgust, or never received it, because it's her old email address (or it got lost in the spam, or whatever). But now that you've emailed, a phone call is not an option anymore, cos if she got the email, you might come across as desperate. More torment and anguish ensue. Who said life was easy?!