If you are looking for a suggested IP Warmup Schedule, please download our IP Warmup Schedule PDF.

The following schedule shows the automatic hourly warmup schedule and email limits that SendGrid will use to warmup your IP addresses when used with IP warmup feature.

Any email traffic exceeding these hourly message limits will be sent through your other dedicated IP Addresses. If you don’t have any other dedicated IP Addresses, these emails will be sent through SendGrid’s shared IPs as a default.

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
36 3,644,511
37 5,102,316
38 7,143,242
39 10,000,539
40 14,000,754
41 19,601,056