Saturday, October 15, 2005

Can you block Skype with an RBL?

A random thought I had earlier this evening ... Is it possible to block Skype using a realtime block list?

posted by guy at: 22:01 SAST | path: /systems | permanent link

Thursday, October 13, 2005

Cyrus, Exim and over-quota messages

We run Exim as our mail transport agent delivering into mailboxes run by the Cyrus IMAP server. We're making use of LMTP to deliver mail from Exim to Cyrus.

One of my little bug-bears about this setup is the way it handles users who're over quota. The typical Cyrus response is to (rightly) refuse to deliver the message, which results in Exim bouncing the message "local delivery failed". There are two problems here — we're immediately bouncing mail for what's likely to be an transient problem, and we're sending it back with an essentially useless error message.

posted by guy at: 22:05 SAST | path: /systems | permanent link

Cyrus FUD

A while back, Pierre was trying to add users' mailbox information (new message count, etc) to the studentzone. He had some hair-brained scheme that involved caching the users password clear-text in a cookie. There had to be a better way to do this ...

posted by guy at: 17:02 SAST | path: /systems | permanent link