Re:Google Calendar should prevent spam by default
by brongondwana on Thursday February 22, 2018 @07:56PM
(#16443207)
Yeah - At FastMail we default to only adding if it comes from someone in your addressbook. You can reduce it to just an addressbook group, or open to the world if you feel like living dangerously.
My guess is they have loose rules around auto-adding iCal attachments detected in IMAP/Mime messages. It's notoriously difficult to get email and calendars working. There's a reason ActiveSync is so damn expensive.