About once a week I check two old web email addresses, just in case you know. I don't think there has been anything significant there for a couple of years. Although, one of them has such a lot of history and I have just realised I must keep it alive or spend a lot of time forwarding old emails to my later addresses.
And the other I am a bit nostalgic about as it was my first web email address. It was a firstname.lastname@example.org address. Rocketmail was great compared to other web emails in the mid nineties. It got taken over by yahoo at some stage and I ended up with email@example.com
I may have had a hotmail address before that, I can't recall and it is not the hotmail address I have now that I keep alive and that is all. Actually, I need that one too as it is my msn messenger address.
All too hard, easier to just log in every so often and keep them active. But I really might have a go at the forwarding my past from rocketmail. I don't think there is too much there.