Mail Servers

  1. To add or update a PTR record for an AWS IP, you will need to contact Amazon through the: Request to remove email sending limitations form. Read more in this article.
  2. How to configure a SMTP server with letsencrypt on an amazon EC2 instance.
  3. Rate limiting your postfix server to limit the amount of e-mail a single user can send.
  4. How to use SPF records to increase the likelihood that your e-mails will be received and not go to spam.
  5. How to configure Postfix to use Lets Encrypt certificates.
  6. How to debug problems with a Dovecot server using log files.