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How To: Postfix with SPF

How To: Postfix with SPF

In this post I would like to explain the usage of SPF (Sender Policy Framework), which could be used to prevent spam. SPF will use the DNS system to tell the receiving mail server, whether the sending server is allowed to send mails for this domain. As this is the basic concept, I will explain […]

How To: Postfix with DKIM

How To: Postfix with DKIM

In this post, I would like to show, how to use DKIM together with postfix to enhance the chance, that mails send by your mail server are not marked as spam at the receiver. In my last post, I showed how to set up postfix in front of scalix to filter incoming mails. As also […]

How to: Install Scalix on Debian

How to: Install Scalix on Debian

In this post I would like to show, how to install Scalix on Debian. The system is running the latest version of Debian in a minimal installation. In my last post, about this topic I installed Postfix and Scalix on the same host. This time, I will install Scalix on a host and Postfix for […]

How To: Proxmox Networking

How To: Proxmox Networking

This time, I would like to show how proxmox networking configuration can be configured. In my last post, I showed, how to install proxmox and get ready to create VM’s. I will show a typical configuration, which I always use. The official documentation can be found here: Proxmox Network Model I will show, how to configure […]

How To: Postfix with TLS

How To: Postfix with TLS

This time I would like to show, how to secure the connection between postfix and the client with the help of a certificate by using postfix with TLS support. You can use your own certificate authority for that or a public one. I will use StartSSL to create my certificate and use postfix with TLS. […]