The Cold Email APOCALYPSE Just Started

Jay Feldman
Jay FeldmanOct 16, 2025

Why It Matters

The suspension threatens deliverability and revenue for cold-email services and their clients, forcing rapid migration to alternative platforms and raising operational costs; resolving Google’s detection criteria will determine how quickly normal email outreach can resume. Continued platform enforcement could reshape market demand toward diversified mail infrastructure and non-Google providers.

Summary

Google has begun mass-suspending mailboxes tied to cold-email infrastructure, leaving many users and vendors unable to access accounts and prompting urgent remediation. Providers and infrastructure firms report widespread outages over the past days, with roughly a quarter of some vendors' clients affected and significant recovery costs already incurred. Firms are pausing new Google mailbox setups and shifting high-value customers to Microsoft 365 and private SMTP providers while they reverse-engineer Google's detection triggers. Industry participants expect a short-term disruption followed by technical workarounds once the suspension criteria are identified.

Original Description

Google mailboxes are getting banned all over the world. Is this the end of cold email marketing? What cold email mailbox infrastructure should you go to next? Microsoft 365? SMTP?
Recommended tools here
Mission Inbox for SMTP
Inboxing.com for M365
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