Cold email deliverability in 2026 — what actually changed

The 2024 Gmail/Yahoo gates are now permanent

Two years after Gmail and Yahoo shipped their Bulk Sender requirements, the line applies to everyone. Send one email or a million — you're measured the same way. SPF, DKIM, DMARC alignment, one-click unsubscribe, and a spam rate under 0.3%: miss one and you land in spam.

What changed since 2024

• Microsoft turned on the same spam-rate gates in mid-2025.
• Apple's iCloud relay strips link tracking by default now — unless the link sits on your own sending domain.
• Bounce windows tightened: 5% over a rolling 30 days became 3% over a rolling 7.

The Autocloz checklist

1. DKIM key rotation every 90 days. We monitor and remind.
2. DMARC at p=quarantine minimum. p=reject is the goal.
3. One-click unsubscribe header (RFC 8058). Auto-injected by every Autocloz mailbox.
4. Per-mailbox bounce window auto-pause at 2.5%.
5. Inbox-placement seed tests weekly — not just at launch.

No tool fixes this. Running these checks every week does. Autocloz runs them for you, so the discipline stops depending on you remembering.