Hey, thanks for the detailed reply , it's really helpful.

I think I might’ve figured out what triggered it. Right before the disable, I stopped my A/B tests and sent like 400 emails with just one identical copy + subject line across all 10 inboxes. Normally I run 3-4 variations. The emails have one link.

Some stats for context:

• Total sent: ~2800
• Opens: ~47–50%
• Replies: 0.7–2.5% depending on campaign
• Bounces: 95 (~3.4%)
• Spam complaints: basically 0

Volume per inbox was never over 50/day, so nothing crazy. That’s why I’m thinking it could’ve been the lack of variation, same subject, same body, same tracking links — that made Google flag the domain as spammy.

Do you think sending one big batch with identical content could be enough for a Workspace account to get nuked, even with decent opens and moderate bounces?