It looks like Evo was choking on my large mailbox and slow connection. After several restarts I finally got everything. Or at least close enough to everything that I haven't noticed any problems yet.

I took this opportunity to clear out a bunch of old stuff that I was keeping "just in case". I need to start doing what the real-estate company I worked for did: File everything by "keep until" date. If that date comes and something is still in the file, toss it.