cm, 4 months ago German

Is anybody else getting emails with a text like this:

"This is a test mail. If you receive this mail, it means your email server lack the authentication for SPF and DMARC. We strongly recommend you to initiate these two authentication protocols."

I've received at least 3 of these over the last weeks, all from addresses that are listed in about every DNSBL there is... no contact info, nothing. WTF?

#email #spam