If I generate a certificate through Amazon Certificate Manager, can I somehow use it within my EC2 instance? I want to migrate my existing email service (both SMTP and IMAP servers) using Postfix and Dovecot to AWS, and in the configuration I would like to use Amazon certificates, if this is at all possible. I looked into Amazon SES, but they do not offer an IMAP server. An alternative option is Amazon WorkMail, but I don't think it supports migration for my particular setup, and I'd like to retain as much control and customization as possible.
Unfortunately Amazon certificates are only available for Amazon resources, you cannot use them on self managed resources (i.e. EC2) it's not a certificate that you can download and use.