I’ve just lost 12–16 hours of e-mail, including e-mail sent to my university e-mail account, which is upsetting. If you’ve e-mailed me in the past day and I haven’t replied, please resend your message (preferably exactly how it was).
I’ve asked my mail sysadmin for a filtered copy of the mail logs for the past day so that I can e-mail people to ask for copies of their e-mails, but still, I’ve definitely lost the output of some cronjobs and other automated messages.
It’s important not to let this bother me too much. E-mail is a useful tool and it doesn’t matter that my archive isn’t 100% complete, so long as things continue to get done. If I can’t get the logs then there’s nothing to be done, and I should accept that, but it’s hard since I’ve kept every e-mail now for such a long time.