Sir Apfelot Blog

27. February 2018
ATT00001 featured image

Reader's question: What are ATT attachments in mails in Outlook and Exchange?

Today a reader (Servus, Peter!) Asked me how it is that his mail program displays attachments like ATT0000x.html, although he only sent a .doc and a .docx file to the original on the Mac in the mail [...]
13. January 2016
TNEF's enough icon

Instructions: Open and display winmail.dat files on the Mac

Almost every Mac user has certainly experienced it before: You get an email with an attachment called "winmail.dat" and you don't really know what it is. At first I thought of a virus, [...]