The Cisco Email Security Appliance (ESA) is well-known for its very good Anti-Spam features. But it completely lacks a usable implementation for mail encryption with S/MIME or OpenPGP. That is: We are using other appliances for that such as Zertificon, SEPPmail, or totemo.
However, the Cisco ESA still remains the main MTA for incoming and outgoing mails, hence mails must be routed to the encryption appliance of your choice for signing/encrypting (outgoing) or verifying/decrypting (incoming) mails. Such mail routings should be done with CLI-only message filters, rather than content filters. Here we go:
Continue reading Cisco ESA: Mail Flow for Encryption Appliances →
I wanted to configure a weekly email report on a Palo Alto Networks firewall. “Yes, no problem”, I thought. Well, it was absolutely not that easy. ;(
While the PAN firewalls have a great GUI and a good design at all they lack an easy-to-use email reporting function, especially when compared to the FortiGate firewalls which have a great local report feature. –> If you want some stats on a weekly basis you must configure it completely from scratch. Unluckily this is not that easy since you must pass several steps for that. Therefore, I drew an outline of the Palo Alto reporting stages to have an overview of them.
Continue reading Palo Alto Reporting →
Roundcube is an email webclient which is easy and intuitive to use. I am using it for my private mails, connecting via IMAP and SMTP to my hoster. One of the great advantages is the “flag” option which is synchronized via IMAP to my Apple devices.
Following is a step-by-step installation guide for Roundcube plus an update scenario. It is a kind of “memo for myself”, but hopefully, others can use it as well.
Continue reading Roundcube Installation Guide →