Sending cold outreach at scale comes with real risks: emails landing in spam, LinkedIn accounts getting restricted, or inboxes burning out. The Agent is designed to prevent all of that. Whether you're using email or LinkedIn, the Agent handles the behind-the-scenes logic—so your campaigns stay safe, smart, and successful.

CallSine handles the complex infrastructure behind cold email outreach so you don’t have to.

If you're using CallSine's cold email infrastructure, the following safeguards are built in:

Inbox Volume Management
​Each inbox sends no more than 30–50 emails per day. The Agent rotates between your inboxes to stay below provider limits.
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Inbox Warm-Up

All inboxes go through a warming period before outreach begins. This builds trust and reputation to protect deliverability.

[Learn how to get cold email infrastructure set up on your account → How to Set Up and Use Cold Email Infrastructure in CallSine]

Email Validation

The Agent automatically validates every email address before sending. This reduces bounces and protects your sender reputation.

The Agent also takes care of the details that affect email deliverability:

Note: Everything the Agent sends is optimized to land in the inbox—not the spam folder.

LinkedIn limits outreach based on:

The Agent automatically adjusts to these limits:

The Agent doesn’t just stay compliant—it optimizes for performance under LinkedIn’s constraints.

[See how the Agent optimizes LinkedIn outreach → How CallSine Agents Balance Multi-Channel Outreach]