Warm up a dedicated IP

When you get a dedicated IP address with our Enterprise plan, 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
0	20
1	28
2	39
3	55
4	77
5	108
6	151
7	211
8	295
9	413
10	579
11	810
12	1,000
13	1,587
14	2,222
15	3,111
16	4,356
17	6,098
18	8,583
19	11,953
20	16,734
21	23,427
22	32,798
23	45,917
24	64,284
25	89,998
26	125,997
27	176,395
28	246,953
29	345,735
30	484,029
31	677,640
32	948,696
33	1,328,175
34	1,859,444
35	2,603,222

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 support@sender.net – we’re here to help 24/7.