Hey everyone. I want to install and configure Postfix to relay off of a mail server that already exists in my datacenter. The relay does not require authentication and all the guides that I have fo... [by ykket]
I have a virtual private server on which I am trying to configure Postfix as an SMTP server. The server is remote and it is hosting multiple domains.
I read some documentation, and various posts on forums, and I tried configuring it, but within 24 hours I noticed that my server was abused and used as an open relay. So there is something I must have gotten wrong.