Re: I was once responsible ....
A certain British university used to have a multiplicity of weekly email news letters; university level, faculty level, school level. What research is in the news, who has been made professor or awarded a prize, adverts for drop in sessions and such like. One day an important announcement about a university-wide planned email outage snuck out in the middle of one of these. Almost everyone was caught unaware when the email was turned off for a day.
Follow up: cutting number of news letters, promises to make important announcements separate.
Several years on, multiple news letters each week...
Biting the hand that feeds IT
