Marketing Cloud Next starts with shared IPs for sending and email sends are automatically assigned dedicated IPs based on volume. Internal services continuously monitor shared and dedicated IP pools and rebalance traffic to ensure optimal delivery performance.
Although Marketing Cloud Next utilizes shared IPs for sending, you will still need to perform warming for your domain(s). Domain reputation is a large contributing factor to message delivery. The largest mailbox providers (Google, Yahoo, Apple, Microsoft, etc.) have started using domain reputation as a primary source of sender reputation, with IP Reputation as a fallback for a unknown domain.
If you're using a brand new domain/subdomain for email sending with Marketing Cloud Next (domain warming can also be useful even with an existing domain since you will be sending from different IP addresses with Marketing Cloud Next if you're changing email service providers), use a slow and methodical approach by starting with no more than a few hundred emails per day.
To build a strong sender reputation, gradually expand your audience based on email interactions. For your first week, slowly increase your send volume. Send emails to only your most engaged recipients, including new sign-ups and anyone who’s engaged in the past month.
| Day | Daily Max Volume |
|---|---|
| 1–3 | 500 |
| 4–5 | 1,000 |
| 6 | 1,500 |
| 7 | 2,000 |
| 8 | 2,500 |
After that, expand your sending list each week by one month of engagement. For example, during week two, send messages to anyone who’s engaged in the past two months. During week three, send messages to subscribers who have engaged in the past three months, and so on.
Starting during the sixth week, proactively remove unengaged recipients from your list. Don’t send messages to subscribers who haven’t engaged in over six months.
If at any point you notice a dip in performance, scale back your send volume to the last successful threshold to protect your sender reputation.
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