Clay consultant: an outbound stack with Apollo and Instantly.

A common setup runs in a line. A list is built in Apollo or Clay, enriched and checked against your customer profile, then pushed to Instantly for sending. Replies come back by webhook, get classified and reach a named salesperson in HubSpot or your CRM with the context attached. Opt-outs and bounces go to one suppression list that every tool reads before sending.

SBD has no published case study on Clay. We have published related work with the other two tools: lead capture, enrichment and CRM sync for a B2B sales team used Apollo for enrichment alongside Clearbit, BuiltWith and Apify, and the IntellReach AI outbound platform has Instantly in its stack, with address verification, reply handling and readiness checks before a campaign. We can show you those, and we will prototype your Clay table first so you see the results and the credit use.

We settle this before any list is built, and your legal adviser has the final word, since we are not lawyers. These rules differ by the country of the person receiving the email, so we ask where your prospects are first.

In the US, the FTC's CAN-SPAM guidance, read in November 2026, requires accurate header information and a valid postal address in each message, and opt-outs honoured within 10 business days. The opt-out has to keep working for at least 30 days after sending, and each violating email can carry a penalty of up to $53,088.

In the UK, the ICO's guidance, read in November 2026, says you can email corporate bodies without prior consent if you identify yourself and give a valid opt-out address. Sole traders and some partnerships count as individuals, so they need consent unless the soft opt-in applies, and you cannot tell which is which from an email address. If in doubt, the ICO says to treat the address as an individual's, and UK GDPR still applies to a named person's details.

In the EU, the European Commission lists an address like name.surname@company.com as personal data and info@company.com as not personal data. So enrichment data about a named person needs a lawful basis and a record of where it came from, and national email marketing rules apply on top.

Mailbox providers set their own rules. Google's sender guidelines, read in November 2026, require SPF or DKIM, TLS and a reported spam rate below 0.3% for all senders. Anyone sending more than 5,000 messages a day also needs SPF, DKIM and DMARC, and marketing messages need one-click unsubscribe and a visible unsubscribe link.

Here is what that means for a build from us:

• Each contact record keeps its source and the date it was collected.
• A single suppression list is checked by every sending tool, and an opt-out in one tool updates it.
• Each message states who is sending it and includes a working opt-out and your postal address.
• Sending runs from a domain you own, with SPF, DKIM and DMARC checked before the first campaign.
• Messages are written to a real audience with a reason to hear from you, and volume rises only while spam and bounce rates stay low.
• We turn down lists of unknown origin, and work meant to disguise the sender or evade a provider's filters.

Clay's pricing page, read in November 2026, charges in actions and data credits. Actions measure platform use and reset each cycle, and data credits pay for marketplace data, starting at $0.05 each. Free includes 500 actions and 100 data credits a month. The page showed Launch at $167 a month in its plan header and $185 in its FAQ, and Growth at $446 and $495, so we confirm your price with Clay. CRM auto-sync, HTTP API integrations and webhook signals are listed on Growth, so the sync described above needs Growth or a workaround. SSO, role-based access and custom data processing terms are on Enterprise.

Apollo's pricing page, read in November 2026, lists Free, Basic, Professional and Custom plans with no dollar figures in the version we could read. Credits are pooled across the team, reset each billing cycle and do not roll over, and annual plans carry a 12-month commitment. Its API documentation recommends scoped keys limited to the endpoints an integration needs.

Instantly's pricing page, read in November 2026, lists its Outreach Growth plan at $47 a month for 5,000 emails and 1,000 uploaded contacts, with higher tiers shown at conflicting prices across the page, and credits for its lead database sold separately. Its API uses bearer keys with scopes, and webhooks report campaign, email, lead and meeting events. Unlimited sending accounts on a plan do not change any of the rules above.

It suits a B2B team with a defined customer profile, a CRM someone keeps clean, and an offer that makes sense in a short email. Clay earns its cost when you need several data sources and logic across them for each prospect.

It is the wrong purchase in these cases:

• Most of your sales come from referrals or inbound. Fix how fast you reply to leads first.
• Your contacts are mainly consumers or sole traders in countries where consent is required.
• Your list and fields are simple. Apollo alone may cover enrichment and sequences, with no Clay subscription.
• Nobody will read replies. A person has to follow up, or the system only produces complaints.

Every engagement starts with an Automation Audit at $500, credited in full to your build. We map the countries you sell to, your data sources and your CRM, then agree the sending rules in writing. Workflows start at $1,500 and multi-module systems at $5,000, as a fixed price set after the audit. Tool accounts, domains and contact data stay in your name.