postfix is a really old, but very stable email server. This puts a modern API on top of it. I really like it. I was doing a one-time email type of service that

postfix is a really old, but very stable email server. This puts a modern API on top of it. I really like it. I was doing a one-time email type of service that had to manually create and destroy 100's of email addresses a day. This would have helped out a lot when getting started. I had to write/hack custom tools that barely worked. I would have loved this.