What mailbox format is being used during the failures, maildir or mbox? Might make a
difference. (I've always thought maildir is safer than mbox, because one maildir file
gets corrupted and one message is lost, while one mbox bit gets flipped and all the
messages are lost.)
dep
Pictures:
http://www.ipernity.com/doc/depscribe/album
Column:
https://www.athensnews.com/opinion/columns/the_view_from_mudsock_heights/