I use eximstats to report my daily email traffic. I have a fairly high rate of rejections and wanted hostnames listed in the rejection reports. To resolve this I developed a patch to capture the hostname related to the IP address, and add this data to the rejection reports. The enhanced list saves me the… Continue reading Hostnames for eximstats Rejections
Faking IMAP for Exchange Email
Using DavMail to add IMAP, SMTP, and CalDav access to Exchange WebMail Servers. Works with Thunderbird and Windows Live clients.
Providing IPv6 DNS resolver data with radvd
How to provide DNS server addresses to IPv6 clients using Router Announcements.
Detecting Email Server Forgery
Verification methods for incoming SMTP connections with statistics. How to validate your server, and block Spambots.
Securing your Email Reputation with SPF
SPF (Server Policy Framework) is a simple means to limit the ability of others to forge your identity in email. I first implemented it after a forged identity under my domain was used to send Spam. Once SPF was configured, the bounce messages quickly dropped off. Although not as frequently implemented as sender address checks, SPF… Continue reading Securing your Email Reputation with SPF
Setting Up BackupPC on Windows
Back up Windows PCs and Laptops using BackuPC. Includes installing rsycnd on Windows.
Setting Up BackupPC on Ubuntu
Set up a BackupPC Server on Ubuntu. Includes configuration of Linux and OpenWrt clients using rsyncd.
Email Logins for Dovecot and Exim
Configuring a common login for Dovecot IMAP(s) and Exim SMTP. Also Exim Submission port and TLS (SSL) configuration.
Implementing IPv6 Part 2
Replacing 6to4 tunnel with 6in4. IPv6 enabling Bind, Exim, SPF, Squid, and updating Databases containing IP addresses.
Blocking Spam with Exim
Spam blocking techniques for Exim. Uses delays to cause Spambots to fail. Notes on bulk and automated mail servers.