I have had yahoo's own messages - I mean their own announcements not other yahoo user emails! - go to my yahoo spam. A (very) few times same has happened with gmail and hotmail. Email is never 100%, will never be, even with the best up to date and secure settings. Another a bit common example of this is when services miss obvious spam and it lands in your inbox or kind of opposite when twitter notifications land in spam for example. I would NOT recommend trying to fix server settings unless the recipeints are comfortable or are not inconvenienced dealing with the next time it fails. Slack groups and such are far better communication method.

You call that great explanation a rant?  :)

Thanks Shades, I actually learnt things  :up:

"Click: Go to parent folder" is done only via an addon? How minimal is the base install?  :tellme: