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Retention, email, WhatsApp, CRM

@i_mails_

Cold email deliverability checklist from an agency operator sending 30,000 emails a month per client: match volume to infrastructure capacity and ramp gradually, verify the list against a tight ICP, and cap the first sequence at three emails, re-running it on the same contacts after about three months.

36k plays · 01 Oct 2026

What they said

  1. Claim: sends 30,000 emails/month per client; spam is a common problem but "not as complicated as you think"; 2-3 reasons you land in spam.
  2. Infrastructure: imbalance between sending volume and capacity of the infrastructure. Do not exceed the recommended sending volume for that capacity; increase volume gradually; track everything at all times; bounce rate and spam rate cannot be ignored.
  3. List quality (arguably most important): outdated, unverified or random contacts will not reach the inbox. Verify contacts through a verification tool, and make the final list match the client's ICP "almost perfectly".
  4. Sequence length (side note): number of emails in one sequence can affect infrastructure long-term. No more than three emails in the first sequence. Re-run these sequences on the same contacts around three months later.
  5. Caption: "How to not land in spam" with tags: cold email outreach, lead generation agency, service based business.

Try this

  • Cold email senders: Match your volume to your sending capacity. Raise it gradually, and watch bounce rate and spam rate all the time. Do not ignore them.
  • Cold email senders: Verify every address with a verification tool. Then make the list match your ideal customer almost exactly. Old or random contacts will not reach the inbox.
  • Cold email senders: Keep the first sequence to three emails at most. Be careful about re-running it on the same contacts after three months, since it can annoy people and hurt your reputation.
  • Beginners: The reel skips the basics. Set up SPF, DKIM and DMARC, send from a separate domain, and warm up new inboxes before you scale.
  • Brands with newsletters: Apply the list hygiene part only. Remove dead addresses, ramp up slowly, and watch spam complaints.
  • Everyone: Do not cold email consumers. Use cold outreach for business-to-business partners such as retailers and stockists.

Links

  • Generic "verifying tool" for emails (no name given). Comments mention Instantly (free warmup), leadsranger.com (spam-looking self-promo), email warmup tools. No links by the creator.

Watch the original

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