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Warmup & deliverability

Here's how to check and maintain domain health before and during campaigns.

Updated over 2 weeks ago

Once your domains and email accounts are purchased, they'll appear inside Prospi within 24 hours and the warmup process will begin automatically.

Tracking Your Progress

You can monitor the warmup status of each account at any time—the percentage complete is always visible so you know exactly where things stand.

Stay Informed

You'll receive a notification 5 days before your warmup is complete, giving you time to prepare your campaigns. Once warmup finishes, you'll get another notification letting you know your accounts are ready to send.

Optimized for Deliverability

We handle the technical details for you. Prospi uses best-in-class warmup settings that we continuously adapt to the latest deliverability trends, ensuring your emails have the best chance of landing in the inbox.

Technical Setup

  • SPF record is configured correctly
    👉 Check using https://mxtoolbox.com/spf.aspx — just enter your domain.

  • DKIM is set up and authenticated
    👉 Go to your email provider’s admin console and check DKIM status. You can also use MXToolbox DKIM check.

  • DMARC is live and reporting
    👉 Use https://mxtoolbox.com/DMARC.aspx to confirm it's working and sending reports.

  • MX records are active and correct
    👉 Use MXToolbox to check that your domain is routing emails correctly.


🔥 Warm-Up & Sending Limits

  • Inbox is in warm-up (minimum 2 weeks)
    Don’t launch campaigns before warm-up is done. Prospi handles this automatically.

  • Volume is under safe limits
    Max 20 emails per inbox/day, 60 per domain/day (post warm-up)

  • Warm-up process is still running
    Never turn off warm-up - even after campaigns start.

  • Replying to real conversations
    You or Prospi’s AI Inbox Manager are actively replying (not just sending).


💬 Content & Copy Quality

  • Plain text emails only
    Avoid HTML or fancy design - it increases spam risk.

  • Copy uses advanced spintax
    Change subject lines, intros, CTAs - every message should be unique.

  • No spammy keywords
    Run a quick scan on tools like mail-tester or SmartReach’s email checker.

  • Includes AI-enriched personalization
    Use variables like {{company_mission}}, {{industry}}, or {{target audience}}


🧼 Reputation & Blacklist Monitoring

  • Check your domain on blacklist databases weekly
    👉 Use tools like https://mxtoolbox.com/blacklists.aspx or https://multirbl.valli.org/

  • Bounce rate is under 1%
    Prospi does double email verification, including catch-all checks.

  • DNC/Unsubscribe list is enforced
    Leads who opted out or said “not interested” are excluded from all future campaigns.

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