Spamming the Calendars

[rwcanary]

We are having an issue of SPAM coming into our customers Calendars.

Yes, that's right I said calendar.

It seems the mail has an ".ics" attachment, and is marked with a different location each time. This is causing the reminder/appointment window to popup, continually, until it crashes the browser. It is happening on both IE and Firefox, Windows and Mac.

[ewilen]

This might help:

Preferences > Calendar > Permissions > Invites > "Allow only internal users to invite me to meetings"