Understanding an IP/domain warm-up
Due to the high threat level associated with spammers who send mass emails and engage in other email-related criminal activities, inbox providers are cautious about new sending domains and IP addresses. To safeguard their users, these providers expect new, legitimate senders to demonstrate their trustworthiness.
An ip/domain warm-up process involves gradually increasing the email volume sent from a specific pair of domain and IP address over several days and getting positive feedback from recipients to establish a positive sending reputation with inbox providers. A warm-up process will only have positive results if you:
Guidelines: Respect the senders guidelines documented by each inbox providers.
Engagement: Demonstrate your users are expecting the emails you send and interacting positively with them.
Conducting a proper IP and domain warm-up is essential for building a strong reputation with all email providers on the long run. This process significantly reduces the risk of having block/delays issues and increases the likelihood of reaching your users' primary inboxes.
Wondering if you should run a warm-up?
Read our guide here: When should you consider a warm-up?
Getting ready for a warm-up
You will find in this section of the documentation detailed steps on the methodology Batch recommends to prepare a proper email warm-up.
The key is to never start a warm-up process if all the lights are not green:
Note: Batch implementation and customer success teams guide our customers through the whole warm-up process.