It came to my attention this evening (i.e., Scooooot was kind enough to mention) that one of my email addresses had a fucked up reply-to address. And by fucked up, I mean it was going to a domain I haven't owned in about 4 years.
What's really bad is that it happened sometime on June 25th, @ 12:35pm and I just now noticed. This explains so much. Except for how the hell it happened in the first place.
The 25th was a Sunday, so I'm not completely ruling out that I may have been drinking at the time.
And somehow, in the minute between normal setup and fucked up set up, I managed to go into my options and change the address to something I would never be able to check. Yeah, that sounds about right.