User:Clovermoss has sent emails to Wikimedia-l such as this one which celebrated English Wikipedia's milestone of six million articles. However, the HTML formatting of the email was lost between the time that it was emailed by Clovermoss and by the time that I received it from the mailing list.
Clovermoss sent the same contents in an email to me off list, and this time the formatting was preserved.
There is a bug somewhere and I would appreciate having someone with relevant knowledge try to identify it.
I received permission from Clovermoss to start this Phabricator ticket.