Contents · Cold email basics

Cold email basics · Updated Oct 8, 2026

Deliverability checklist

In short

Keep this list open while you set up. Each item links to how to do it in SendPath.

Before your first campaign

  • Send cold email from a second domain, not the one your team uses every day. Why
  • Plan on about 30 campaign emails a day per mailbox, and 2–3 mailboxes per domain. How many you need
  • SPF, DKIM, DMARC and MX all pass on Senders. Set up DNS
  • Every mailbox has a name, and no Reply-to. Where replies go
  • Warm-up is running, and new mailboxes have had about two weeks. Warm-up
  • Your postal address is in Settings. The rules
  • The list is recent and verified, with few invalid addresses. Verify

Your emails

  • Short: 50 to 120 words. Plain text, no images, no attachments, one link at most.
  • A short, plain subject that matches the email. No ALL CAPS, no false urgency.
  • Personal: variables like {{first_name}} and a first line written for the reader, with spintax for variety.
  • Inbox readiness is mostly green. Inbox readiness
  • Open and link tracking stay off unless you really need them.
  • You sent yourself a test and read it on your phone.

While you send

  • Bounce rate stays under 2% on Home. The numbers
  • Warm-up placement stays at 90% or more, and warm-up keeps running.
  • Raise volume slowly: add mailboxes, not more emails per mailbox.
  • Answer replies quickly. Replies are the strongest good signal there is.
  • Old lists get rechecked before you use them again.

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