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Home/Knowledge Base/Getting started with deliverability

Dedicated IP Warmup

Last Updated: Jul 10, 2025

When you purchase a dedicated IP address, our system automatically initiates the warming-up process on your behalf, utilizing a portion of your most engaged subscribers. It typically takes 4-8 weeks to achieve maximum deliverability (depending on volume and engagement).

The warming-up period may extend if mailbox providers perceive that the emails are not explicitly desired by the recipients, such as when recipients have not explicitly signed up. Certain mailbox providers impose sender thresholds, restricting the number of messages delivered per day until a sender establishes a reputation.

If you prefer to manage the warming-up of dedicated IP addresses yourself, you can request to disable this automatic process. 

However, it is crucial to avoid sending large volumes of emails immediately after the warm-up process ends. Instead, gradually increase the number of emails sent until you reach your intended volume. A sudden and substantial surge in the number of emails from an IP address may lead email providers to block or throttle message delivery from that address.

Important note: If you choose to disable the automatic warm-up feature, the responsibility of warming up your dedicated IP addresses falls on you. Sending emails from addresses that haven’t undergone proper warm-up may result in poor delivery rates or delays.

Automated IP warmup hourly send schedule

Warmup Age (Days)Hourly Email Limit
020
128
239
355
477
5108
6151
7211
8295
9413
10579
11810
121,000
131,587
142,222
153,111
164,356
176,098
188,583
1911,953
2016,734
2123,427
2232,798
2345,917
2464,284
2589,998
26125,997
27176,395
28246,953
29345,735
30484,029
31677,640
32948,696
331,328,175
341,859,444
352,603,222

That’s it!

If you got stuck on a specific task or can’t find a way to execute a particular job, contact our support team via LiveChat or [email protected] – we’re here to help 24/7.

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