New domains or IP addresses can be seen as suspicious by ISPs until they have established a positive sender reputation. To improve email delivery rates, it's important to warm up IP/domain reputations gradually by increasing sending volume while ensuring that emails are delivered normally.
IP/domain warm-up is a process that takes time and requires careful consideration of recipients, frequency, and content. During the warm-up process, it's important to monitor for email returns and adjust your sending strategy as needed to ensure that emails are delivered normally. Here are some key factors to consider:
- Target recipients: Send emails only to those who have opted-in, especially those who are least likely to complain or bounce.
- Email frequency: Control the frequency of email delivery at an appropriate level, avoiding sending too many emails too quickly.
- Email quality: Ensure that your emails are of high quality and avoid sending illegal or spam emails.
By following these guidelines, you can successfully warm up your IP/domain reputation and improve your email delivery rates.
We suggest you follow a simple 14-day warm-up plan. The volume of traffic for each day is listed in the table below.
If the mail delivery rate falls below 85%, it is recommended to revert to the sending speed of the previous day to ensure a higher success rate.
Updated 8 months ago