It is important to note an IP warmup plan is merely a way to help the sender identifypotential weaknesses in their email program. Starting slowly gives the sender a chance topause or slow down sending and adjust their strategy before their reputation is severelyimpacted.

IP Allocation

How many IPs should I have?(Suggested IP count is based on desireddaily sending volume)

No. Of IPs                 Target Daily Volume
2                                 25,000
2                                 50,000
2                                 100,000
2                                 200,000
2                                 400,000
2                                 800,000
3                                 1,600,000
3                                 2,500,000
4                                 3,500,000
5                                 5,000,000
7                                 7,500,000
10                                10,000,000
11                                12,500,000
12                                15,000,000
13                                20,000,000
15                                30,000,000
17                                50,000,000
20                                80,000,000


The number of IPs needed toaccommodate your sending volume canchange based on your type of sending,the domains to which you are sending,and your sending reputation.

IP Warmup Schedule

Sending volume ramp up schedule(Regardless of IP count)


Day                           Daily Volume
1                                   50
2                                   100
3                                   500
4                                   1,000
5                                   5,000
6                                   10,000
7                                   20,000
8                                   40,000
9                                   70,000
10                                 100,000
11                                 150,000
12                                 250,000
13                                 400,000
14                                 600,000
15                                 1,000,000
16                                 2,000,000
17                                 4,000,000
18                                 Double Sending Volume Daily


Ideal warm up schedules can vary greatlydepending on a number of factorsincluding: List age, list hygiene, spamreports, user engagement, domainreputation, content, domain distribution,and other factors.