Do-Not-Contact (DNC) list
A Do-Not-Contact (or Do-Not-Call) list is a record of people who have opted out of your outreach — or registered on a government DNC registry — whom you must not contact again. Honoring it is both a legal requirement (TCPA, GDPR, CAN-SPAM) and a deliverability/reputation safeguard.
How it works
Opt-outs (STOP replies, unsubscribe clicks, verbal requests) and registry entries are added to a suppression list that every channel checks before sending or dialing.
Why it matters
Contacting someone who opted out generates complaints, legal exposure and blocklist risk. The suppression must be cross-channel — a STOP on SMS should also stop email and calls.
How Autocloz handles it
Autocloz maintains one suppression engine across all five channels: a STOP, unsubscribe or DNC entry on any channel instantly blocks the contact everywhere, with an audit trail.
FAQ
Should DNC be per-channel or global?
Global. An opt-out on one channel should suppress the contact across every channel. Per-channel-only suppression is how teams accidentally keep contacting people who asked them to stop.
Related terms
The TCPA is a U.S. federal law that restricts telemarketing calls, autodialed and prerecorded calls, and unsolicited texts. It requires prior consent for certain contact, honors the Do-Not-Call registry, and enforces calling-time windows — with statutory damages per violation that make compliance a real financial risk.
A2P 10DLC is the U.S. framework for sending Application-to-Person text messages over standard 10-digit long-code numbers. Carriers require businesses to register their brand and campaigns (use cases) to send A2P SMS legitimately, with throughput and trust scores tied to that registration.
DLT (Distributed Ledger Technology) registration is India's TRAI-mandated framework for commercial SMS. Businesses must register as an entity, register sender IDs (headers) and message templates on a DLT platform, and only send pre-approved content — otherwise messages are blocked.
Cold email deliverability is the share of your outbound cold emails that actually reach the recipient's inbox (not spam, not blocked). It depends on domain authentication (SPF, DKIM, DMARC), sender reputation, mailbox warmup, list hygiene and content — not just whether the email was 'sent'.