Re:How We Make Money at Stack Overflow
by thewhitetulip on Wednesday November 16, 2016 @12:46AM
(#12964813)
Many do that probably, Indian firms don't for sure, I always block them, spam them and complain via twitter and after weeks of follow up do they remove my email id from their spam emails.
Mail providers offer sending to your webhooks or block them directly on their side (so you dont have to worry about it)