Keap uses a shared IP pool to send outbound email. These IPs and their reputations are actively managed by Keap’s Postmaster, Compliance, and Deliverability teams. Because the system is dynamic, the IP your email is sent from may vary based on several factors.

Important Considerations

• IPs change over time as infrastructure and mailbox provider requirements evolve.

• Do not rely on static IP allowlists. Instead, allow Keap’s sending IP ranges or authenticate using DKIM, which is the recommended method.

• When troubleshooting deliverability, always reference the current authorized IPs listed in Keap’s SPF records.

How Keap Evaluates Engagement

Keap determines contact-level risk using engagement indicators such as:

• Email opens

• Link clicks

• Web form submissions (Classic & Keap Ultimate)

These behaviors help estimate how a contact is likely to interact with future messages. This determines which IP pool Keap uses to maintain optimal deliverability and reputation.

Keap IP Pool Structure

Keap organizes its outbound IP pools by engagement quality. Each pool isolates different traffic types to maintain mailbox provider trust and stable IP reputation:

• Transactional – System-generated, non-marketing email (receipts, confirmations, password resets)

• Super Pristine – Double opt-in; engaged within the last 30 days

• Pristine – Engaged within the last 30 days

• Good – Engaged 31–75 days ago

• Mediocre – Engaged 76–120 days ago

• Bad – Last engagement 121+ days ago

• Never Engaged – Newly imported, manually created, or unproven contacts

Note: Pool criteria may be adjusted as industry standards and performance data evolve.

How IP Assignment Works

For every outgoing email to each unique email address:

• Keap determines the contact’s engagement-based risk category.

• The corresponding IP pool is selected.

• A round-robin process chooses a specific IP within that pool.

Why This Matters

A single broadcast or automation can be delivered across multiple IPs, depending on recipient engagement levels.

As a result, Google Postmaster Tools (GPT) may display multiple IP reputation values associated with your domain’s email activity.

Checking Keap’s Current Sending IPs

Because Keap’s infrastructure especially after migrating to Google Cloud no longer relies on static IPs, always use live SPF records to confirm authorized IP ranges.

SPF Record Lookup (infusionmail.com)

• Go to MXToolbox.

• Enter infusionmail.com.

• Select SPF Record Lookup.
  
  

You may see an entry such as a:infusionsoft.com in the SPF record.
This indicates that the A record for infusionsoft.com (its associated IPs) is also permitted to send email.

DNS Lookup for Additional Verification

To view related DNS records such as A, MX, TXT, or additional SPF components:

• Go to MXToolbox.

• Enter infusionsoft.com.

• Select DNS Lookup.
  
  
   

This provides complete visibility into the DNS settings associated with Keap’s sending infrastructure.