So got first invoice for Internet in my new flat. Via e-mail with winmail.dat attached. WTF? Send them reply that their mailing system is broken. They replied that *I* probably have wrongly setup *Outlook* and sent me instructions how to configure my Outlook. Thank you, my mutt us fine and your instructions wouldn't work. Sent them another reply that I'm happy that they know the answer and that they should apply it to their setup as my mail setup is correct. Got e-mail with pdf. No wonder those guys don't suppprt IPv6 nor DNSSEC if they have troubles using plain e-mail. Maybe I should check whether they have DKIM or SPF and do some little evil...