IP Warm-Up Strategy

IP Warm-up Definition

IP warming is a process in which the volume of emails is progressively increased over the course of several days to build a good reputation for the IP with email providers.

IP Warm-up Schedule

  • Weeks 1-2, send to your most active subscribers (Positive engagement in the past 30 days).
  • Weeks 3-4, expand to moderately active subscribers (Positive engagement in past 60 days).
  • No further contact with subscribers who haven’t shown any engagement in the past 90 days, during the first 6 weeks of the warm-up schedule.
  • If the warm-up limit goes above 10 million, we suggest adding another IP.
IP Warm-up Week 1
Week 1Daily Email Volume per IP
Day 1200
Day 2500
Day 31000
Day 42000
Day 55000
Day 610,000
Day 720,000
IP Warm-up Week 2
Week 2Daily Email Volume per IP
Day 840,000
Day 950,000
Day 1075,000
Day 11100,000
Day 12150,000
Day 13200,000
Day 14250,000
IP Warm-up Week 3
 
Week 3Daily Email Volume per IP
Day 15325,000
Day 16400,000
Day 17500,000
Day 18600,000
Day 19750,000
Day 201,000,000
Day 211,250,000
IP Warm-up Week 4
Week 4Daily Email Volume per IP
Day 221,750,000
Day 232,000,000
Day 243,000,000
Day 254,250,000
Day 265,000,000
Day 276,000,000
Day 287,500,000
IP Warm-up Week 5
Week 5Daily Email Volume per IP
Day 2910,000,000
Day 30Done

What to Expect?

Bulking at Yahoo!, AOL, Gmail will clear with a few sends with positive metrics. Though it can take up some time to get in the inbox, what’s important is to constantly maintain contact with engaged subscribers.

Delays at AOL, Microsoft, Comcast will retry for 72 hours and if failed will be registered as a 421 error in the record. Delays are normal as long as they are delivered to the inbox in the end and will lessen with increasing reputation. If Timeouts persist in large quantities, then you should reduce your engagement volume for the particular email provider.

Most commonly blocks occur when the list isn’t engaged enough. You need to segment your list carefully so that you receive maximum engagement.

Monitor your metrics carefully during the warm-up period to extract maximum value.

How to Avoid / Remove Spam Traps

  • Restrain from purchasing or renting Bad lists.
  • Remove hard bounces.
  • Try to engage your inactive subscribers.
  • Default unengaged subscribers, if the attempt to connect returns no value.

Have any more doubts, send us an email at [email protected] and we’ll get in touch!