Domain warming gradually increases the number of emails a new Qualified mailbox can send each day, ramping the volume up over several weeks. It helps establish and protect the sending domain's reputation so email from a new or newly reconnected mailbox is more likely to reach recipients' inboxes as Piper the AI SDR Agent begins sending on your behalf.
Note: To enable domain warming or learn more about availability for your organization, contact your Qualified Success Architect (QSA).
Why domain warming matters
Mailbox providers pay attention to how a domain sends email. A brand-new domain, or one that suddenly starts sending at high volume, can look suspicious and end up filtered to spam or blocked.
Warming reduces that risk by starting with a low daily send limit and raising it on a set schedule. This gives mailbox providers time to build trust in the domain before it sends at full volume.
What to expect while a domain is warming
Warming runs over about seven weekly stages. Each stage sets a daily send limit that holds steady for that week, and the limit rises with each new week. By the final stage, the domain has reached full volume and no send limit applies.
While a domain is warming, keep the following in mind:
- The daily limit applies to email sent through a Qualified mailbox by your AI SDR agent.
- When a domain reaches its daily limit, the remaining sends pause for the rest of the day and resume the next day. They are not dropped.
- The daily count resets every 24 hours.
When domain warming applies
Domain warming takes effect when both of these are true:
- The sending domain has been verified.
- Warming was enabled when the Qualified mailbox was set up.
Warming applies only to email sent through a Qualified mailbox. Email sent by other means is not affected.
.svg)
