Shespamigans

When training the Bayesian filters for SpamAssassin, be very careful about using sa-learn on your active IMAP inbox. Most IMAP clients don’t actually delete messages until they synchronize the mbox. So, after deleting around a hundred Spams, I ran sa-learn over my inbox and SpamAssassin happily learned all of the Spams I had marked deleted as Ham (non-Spam).

Since it was a few hours before I realized what had happened when the incoming Spam getting by SpamAssassin increased tenfold, it was too late to run sa-learn over the old Spams because they had already been truly deleted.

I had to wipe my Bayesian database and start over. No big deal; just inconvenient.

I suck.

Barracuda Spam Firewall

Description (www.barracudanetworks.com):
The Barracuda Spam Firewall is an integrated hardware and software solution for complete protection of your e-mail server. It provides a powerful, easy to use, and affordable solution to eliminate spam and viruses from your organization.

Synopsis:
Under normal circumstances, the Barracuda Spam Firewall only relays traffic for domains it is configured for. If a sender’s domain or the Barracuda’s own domain is whitelisted, however, all rules are bypassed and the Barracuda becomes an open relay for all e-mail sent from the whitelisted domain. This is unacceptable behavior, and whitelisted senders should only be able to send e-mail to domains for which the Barracuda is configured to relay.

Effected Versions:
= Firmware 3.1.11 Fixed (Firmware 3.1.12 Released 02/09/2005)
Continue reading Barracuda Spam Firewall