They can then get a sense of Sublime's abilities by uploading emails to a free service called EML Analyzer, which will use AI to predict if messages are likely benign, suspicious or malicious. It can pick up on phrases that often show up in business-email compromise attempts.
The sales-light approach won't be changing now that Sublime has more capital to work with.
"Our mindset is we're going to go and spend a bunch of money on R&D still," co-founder Ian Thiel said.
IVP led Sublime's new round. Citi Ventures, Decibel Partners, Index Ventures and Slow Ventures also participated.