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 1 | Daily Email Volume per IP |
| Day 1 | 200 |
| Day 2 | 500 |
| Day 3 | 1000 |
| Day 4 | 2000 |
| Day 5 | 5000 |
| Day 6 | 10,000 |
| Day 7 | 20,000 |
IP Warm-up Week 2
| Week 2 | Daily Email Volume per IP |
| Day 8 | 40,000 |
| Day 9 | 50,000 |
| Day 10 | 75,000 |
| Day 11 | 100,000 |
| Day 12 | 150,000 |
| Day 13 | 200,000 |
| Day 14 | 250,000 |
IP Warm-up Week 3
| Week 3 | Daily Email Volume per IP |
| Day 15 | 325,000 |
| Day 16 | 400,000 |
| Day 17 | 500,000 |
| Day 18 | 600,000 |
| Day 19 | 750,000 |
| Day 20 | 1,000,000 |
| Day 21 | 1,250,000 |
IP Warm-up Week 4
| Week 4 | Daily Email Volume per IP |
| Day 22 | 1,750,000 |
| Day 23 | 2,000,000 |
| Day 24 | 3,000,000 |
| Day 25 | 4,250,000 |
| Day 26 | 5,000,000 |
| Day 27 | 6,000,000 |
| Day 28 | 7,500,000 |
IP Warm-up Week 5
| Week 5 | Daily Email Volume per IP |
| Day 29 | 10,000,000 |
| Day 30 | Done |
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!