Spammers using Google Calendar ?

Not sure if something new or old but I just got this twice this week. I thought it's interesting approach since 3 chances to read:

1-) Invitation

2-) Alert (if you have this option enable as I have)

3-) Calendar

Is this something that AV protections are detecting ? How about antispam solutions ?

Funny since this spam is "google to google" not going to spam folder.

Not an analysis, just sharing and basics comments.

Happy Snorting!

Rodrigo "Sp0oKeR" Montoro