Hi there!

We have just launched the Email Throttling feature, which lets you spread campaign delivery over time instead of sending your marketing emails at once.

How it works: Set a maximum number of emails per hour (e.g., 100/hour), and Mailtrap will automatically pace delivery to stay within your limit. This way, you can use it to:

• Improve deliverability – Mimic natural sending behavior and build trust with ISPs over time.

• Protect sender reputation – Avoid being flagged as suspicious by Gmail, Outlook, etc.

• Manage server load – Ensure receiving servers process your emails smoothly.

Who is it for:

• Warming up sender reputation (even for smaller batches of a few hundred).

• Managing large-scale campaigns (50K+) without triggering volume-based limitations.

Note: Available for all users sending email campaigns through the UI.