I am getting many emails everyday that are dated 12/31/69. There is no message contained in the email. I am probably getting 10 a day. Is there any way to stop this?
I have the same thing happen to me when I get spam. (other strange dates also) Just keep marking them as spam and hopefully it will eventually stop. What email program you use?
I've seen that happen when the spam doesn't have a Date: header. You're seeing a little timezone offset correction.
For the technically curious why this date is the default result for the "beginning of time" see this wiki about Unix time & the epoch - Unix time - Wikipedia, the free encyclopedia