In this article, you’ll learn about mailbox warm-ups (aka warm-up slots), or how many email accounts you can warm-up and how many warm-up emails you can send.
How do warm-up slots work
If we think of the Email Warm-up as a fireplace that can accommodate a fixed number of mailboxes at once, the warm-up slot is like a seat near the fireplace.
When you add your email address to a warm-up, it takes a seat (aka warm-up slot) and stays there during the warm-up campaign.
If you remove this email address from the warm-up, the slot becomes vacant and you can place another email account to that slot.
The number of warm-up slots you have depends on your plan and means how many email accounts you can warm up at the same time.
What are warm-up volume limits
The Email Warm-up lasts until it sends a fixed number of emails per day for every slot.
If you replace or re-add the email account in the warm-up slot during the day, the volume limit does not reset.
As your plan gets higher, the warm-up lasts longer with more emails sent and more slots are added.
The following table shows each pricing plan’s warm-up capabilities.
| Pricing plan | Trial
$0 |
Starter
$39 |
Pro 5K
$99 |
Pro 20K
$189 |
Pro 50K
$369 |
Pro 100K
$738 |
| Warm-up slots available | 1 | 3 | unlimited | unlimited | unlimited | unlimited |
| Maximum warm-up emails per day | 15 | 50 | 100 | 200 | 500 | 1000 |
| Monthly warm-up emails for all warm-up slots | 450* | 1 500 | 9 000 | 36 000 | 180 000 | 750 000 |
*The Trial plan does not automatically renew monthly warm-up emails at the end of the billing period. Upgrade here to expand your limits.
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