The article says that the issue was on the recipient side, not the sender's side, so the title is wrong -- sending via Gmail is fine, receiving via Gmail is... well, supposedly an issue, but I've never had a resume land in my spam folder so I'm skeptical. (Amusingly, my Google job offer landed in my Gmail spam folder years ago. But that was because of a weird thing where forwarding from my @university.edu account wou…
I wasn't aware of a feature like this, but a quick search turned up documentation for an "email quarantines" feature in G Suite (https://support.google.com/a/answer/6104172).
I do get mail received over POP from another account in my spam folder, but I suspect it doesn't explain this quarantine behavior.
I'm not sure if a G Suite email user can add a private email over POP/IMAP, but I would be a little slack-jawed if they could AND their personal mail could get pulled into the organization's quarantine?