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Campaign email needs its own sending setup. Send cold volume from the domain you invoice customers from and a deliverability problem takes your business email down with it. Recepta.ai keeps them separate: dedicated sending domains and mailboxes for outbound, warmed independently, with your primary domain untouched.

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Sending domains

A sending domain is a domain used only for campaign email. Typically a close variant of your main one — if you’re coralplumbing.com, something like getcoralplumbing.com or coralplumbing.co.
Never use your primary business domain for cold outbound. If its reputation is damaged, your quotes, invoices, and customer replies stop arriving — far more costly than a slow campaign.
Each domain needs its authentication records in place before it sends anything: Recepta.ai provides the records to add at your DNS provider and verifies them once they’ve propagated. All three must pass — a domain missing DKIM will be filtered regardless of how good the message is.

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Mailboxes

Each sending domain carries one or more mailboxes — the individual addresses campaign email is sent from. Spreading volume across several mailboxes keeps per-mailbox volume in a range that looks like a person rather than a broadcast.
Use real human names on mailboxes. dan@ outperforms info@ or sales@, which are heavily filtered and rarely replied to.

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Warmup

A brand new domain has no sending reputation. Send a thousand emails from it on day one and providers treat it as a spam source — sometimes permanently. Warmup builds reputation gradually, with volume ramping over weeks rather than days.
Warm every new domain and mailbox before campaign use, and don’t shortcut the ramp. A burned domain is not really recoverable — you buy another one and start again.
1

Register the domain and set DNS

SPF, DKIM, and DMARC. Allow time for propagation.
2

Create mailboxes

Real names, with a signature and a plausible profile.
3

Run warmup

Let it build for several weeks before real campaign volume.
4

Ramp campaigns slowly

Start well below the mailbox’s warmed volume and increase over days.

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Staying deliverable

List quality first

Bad addresses produce bounces, and bounce rate is the fastest way to wreck a domain. Never send to a purchased list.

Watch complaints

Spam complaints are weighted heavily. If they rise, stop and fix the targeting rather than pushing more volume.

Make unsubscribe easy

A visible, working unsubscribe costs one contact. A hidden one earns a spam complaint, which costs the whole domain.

Write like a person

Short, plain, specific, few links. Heavy formatting and image-only mail filters badly.

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Compliance

CAN-SPAM requires accurate sender information, a physical mailing address, no misleading subject lines, and a working unsubscribe honored promptly. Recepta.ai suppresses unsubscribed addresses permanently and across all campaigns.
Re-importing a suppressed address to send to it again is a violation, and it damages every domain you send from. See Contacts.

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Transactional email is different

Appointment confirmations, reminders, and customer replies aren’t campaign email and don’t run on this infrastructure. See Email inbox.