{ "@context": "https://schema.org", "@type": "Organization", "name": "Maildoso", "url": "https://maildoso.ai", "logo": "https://maildoso.ai/logo.png", "sameAs": [ "https://www.wikidata.org/wiki/Q138748770", "https://www.linkedin.com/company/maildoso", "https://twitter.com/maildoso", "https://www.g2.com/products/maildoso/reviews" ] }
Vlad Mae | Updated: Mar 30, 2026 ‭| 12 min read | 77426 reads
How to Book 50 Sales Calls with Cold Emails
GUIDES
Blog > Guides> Guide for beginners
Step 1: Get 10,000 email contacts
  • Use tools like Apollo.io and Explee.io to find your audience and export emails. Apply filters for location, job title, company size, and industry.
  • Validate your data using services like Leadmagic.io or Listkit.io

Boom — your lead list is ready!
Step 2: Set up mailboxes
  • Sign up to maildoso.ai.
  • Create 30 SMTP mailboxes for $75 and register 5 domains for $60 in minutes.
  • Connect mailboxes to Instantly or another sequencer.
  • Launch 14-day warm-up.

No tech headaches — just fast and easy setup!
Step 3: Prepare your copy
Create 5 different copies.
Template structure:
  1. The problem they face.
  2. What your company does.
  3. Case study/result of your other client.
  4. CTA: Offer to show them a demo video/lead magnet.

Learn more about copy in our guide.

Below are examples of email templates
Step 4: Create a lead magnet
Option 1 – A video (the best option)
  • Use Loom to record a 2-5 minute video.
  • Get to the point fast and show the problem you solve.
  • Add scarcity/urgency (exclusive discount code).
  • End with a clear call to action to sign up/book a call.

Option 2 – A case study / guide / freebie
Send something that brings more value to the prospect.
  • A nicely structured case study of your other client.
  • A guide explaining how your tool solves a problem.
  • A free trial/audit.
Step 5: A campaign launch and inbox management
  • Launch campaigns in Instantly.io or Smartlead.ai.
  • Process inbound leads: answer questions and invite them to a call.
Most cold emails fail simply because they land in spam. People never even see your offer.
Our SMTP and Google Workspace mailboxes are built specifically for outbound; this means your emails will finally be seen, and you’ll start getting more positive replies.
Boost your outbound with our infrastructure!
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