Hi All,
just a little warning. I participated in Penton Media / Keysights "RF Fundamentals Part 1-4" (advertised by Keysight!)
Since then I have been mail bombed by Penton Media. Every time I unsubscribe - but then they figure to invent a new newsletter or event and start spamming again.
I have not found a way to completely disable mails from Penton. I have added them to a range of spam lists. But looking into them online - they are famous for spamming and ignoring unsubscribe requests.
So IF you sign up to anything Penton - do it from a disposable email address.
And to Keysight - should you really be dealing with spammers like that?