Understanding IP Warming

IP warming is the process of gradually increasing the volume of emails sent from a new IP address to prevent being flagged as spam by internet service providers (ISPs). The goal is to establish a good sender reputation and improve email deliverability.

In the past, the recommended approach was to break down the warm-up by domain and start with a higher volume, such as 5,000 emails per domain. However, the new Salesforce help page suggests starting with a lower volume of 500 emails and ramping up more quickly.

Evaluating the New Approach

While the new approach is more conservative, it may not be the most effective strategy for all senders. Breaking down the warm-up by domain and starting with a higher volume can help to establish a good sender reputation more quickly.

However, it is also important to consider the risks of starting with too high a volume, particularly for domains like Gmail, which have strict spam filters. A more gradual approach, such as starting with 500 emails and ramping up slowly, may be a better option for some senders.

The root cause of IP warming issues is often a lack of understanding of the sender reputation and the importance of gradual volume increases. By starting with too high a volume, senders can trigger spam filters and damage their reputation.

Best Practices for IP Warming

To optimize IP warming, senders should consider the following best practices:

IP Warming Checklist

• Start with a low volume, such as 500 emails, and ramp up gradually
• Break down the warm-up by domain to establish a good sender reputation for each domain
• Monitor sender reputation and adjust the warm-up strategy as needed
• Use a consistent sending schedule to establish a pattern of good sending behavior
• Monitor email metrics, such as open rates and click-through rates, to ensure that the warm-up is effective

Frequently Asked Questions

What is the recommended starting volume for IP warming?

The recommended starting volume is 500 emails, but this may vary depending on the specific use case and domain.

How quickly should I ramp up my email volume during IP warming?

The ramp-up should be gradual, with a maximum increase of 50% per day.

What are the risks of starting with too high a volume during IP warming?

Starting with too high a volume can trigger spam filters and damage the sender reputation.

How can I monitor my sender reputation during IP warming?

Senders can monitor their sender reputation using tools such as Salesforce Marketing Cloud’s sender reputation dashboard.