The Korra library

Everything on this page is free.

Eleven tools, a calculator, the blog, and the checklist we would send you anyway. Nothing costs anything and nothing is a trial. A few of the tools ask for an email before they show you the last section. The rest just answer you. Take what is useful and go.

Cold email checklist

Before volume, protect the channel.

If you send cold email at any real volume, these eight have to be true first. Miss them and you burn the domain, not the campaign.

SPF, DKIM, and DMARC configured
Verified emails only before campaign launch
Suppression list checked before every send
New inboxes ramped before high volume
No tracking pixels or link-heavy copy by default
Plain text, one CTA, clear opt-out path
Positive replies routed quickly
Bounce, spam, and reply signals reviewed weekly

The stack

The software is infrastructure, not the answer.

Nothing on this list is a secret and none of it is ours. Buying all of it changes nothing on its own, which is rather the point.

Sequencing

Instantly

Cold email sending, follow-ups, campaign management, and inbox rotation.

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Sequencing

Smartlead

High-volume cold email infrastructure for agencies and sales teams.

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Data

Apollo

B2B contact database, company filters, enrichment, and outreach workflows.

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Research

Clay

Account enrichment and signal-based prospect research workflows.

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Verification

ZeroBounce

Email verification and list quality checks before sending.

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Deliverability

GlockApps

Inbox placement testing and deliverability monitoring.

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Automation

n8n

Workflow orchestration for custom automations, internal ops loops, and system handoffs.

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Automation

Zapier

Fast integration glue for lightweight triggers, notifications, and no-code workflow tests.

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Scheduling

Cal.com

Booking links, routing, team scheduling, and calendar handoff for qualified conversations.

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CRM

HubSpot

Pipeline, contact records, lifecycle stages, and handoff visibility for sales and support teams.

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Messaging

Twilio

SMS infrastructure for reminders, missed-call recovery, customer updates, and reply routing.

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Local Growth

Google Business Profile

Review growth and local trust surface for businesses that win through search and reputation.

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Who made this

More business. Less chaos.

Korra is a growth and operations partner. We get you more customers, and we fix the mess behind them. We do the work ourselves, inside your business. If a tool on this page told you something you did not like, that is the sort of thing we come inside and fix.

Or write to infokorra.io.

Korra

More business. Less chaos.

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Korra
Hey. I am Korra. I run growth and operations for companies.
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