21 Jun
2019
21 Jun
'19
10:55 p.m.
Thanks all for pointing out the limitations of the mbox format, of which I was unaware.
It was easy for me to add a line to my preprocessing Python to put a space in front of the From lines in question. I prefer this instead of '>' as that tends to indicate quotation. which would be confusing. Having to mangle the input messages, using a space seems to be the least intrusive. I have imported 25 years of messages, and there were hundreds of occurrences of this. Ironically, the preprocessing has to be done on mbox format archives from Listserv which depart from the rough mbox standard. I was aware of the lack of uniformity of what people think mbox is, but not the From gotcha.
Andrew