Was Benchmark “Blocked” or “Blacklisted”?
Sometimes corporate spam filters and email firewalls don't like seeing a big group of the exact same emails being sent to multiple recipients inside a company. It looks like spam. Or maybe it's used to seeing you sending one or two personal emails to a client in the company, but when it sees an email campaign come from the Benchmark server purporting to be "from:" you, it thinks it
Delivery March 1, 2019