Help with Amazon SES Dedicated IP without warmup - transactional emails

Hi, Hope you are doing well !

Warm-up period is to ensure that a positive reputation is established with ISPs as each IP address needs some time to build a positive reputation. ISPs determine an IP address’s reputation in part based on the quality and the volume of email sent through that IP address. Thus, One of the factors that contributes to the reputation of an IP address is whether the address has a history of sending high-quality email. Email providers are less likely to accept mail from new IP addresses that have little or no history.

Ideally, If you don't plan to send large volumes of email on a regular and predictable basis, SES recommend that you use shared IP addresses. If you want to use dedicated IP addresses in situations where your sending patterns are highly irregular, using Dedicated IPs (managed) is the better option.

Addition, I would like to share that SES actively monitors DNSBLs (Domain Name System blacklist) that could impact delivery across the entire Amazon service, or that could impact the ability to send email to recipients who use major email providers, such as Gmail, Yahoo, AOL and Hotmail. In case if you need further assistance with the issue you are facing you can reach out to AWS technical support team (share the SES sample message IDs) and they should be able to guide you with possible solutions for the issue.

Documentation for reference: [+] https://docs.aws.amazon.com/ses/latest/dg/dedicated-ip.html [+] https://docs.aws.amazon.com/ses/latest/dg/faqs-dnsbls.html [+] https://docs.aws.amazon.com/ses/latest/dg/tips-and-best-practices.html

Thank you for clarification. I wasn't even aware of the fact that ISPs are so strict about this. Now it makes sense.