Here is a new version of Postfix, just released and I’ve got it tested on Snow Leopard and Leopard on my test machines. It solves some small bugs as listed below:

• Performance: a high load of DSN success notification requests could slow down the queue manager. Solution: make the trace client asynchronous, just like the bounce and defer clients.
• The local(8) delivery agent ignored table lookup errors in mailbox_command_maps, mailbox_transport_maps, fallback_transport_maps and (while bouncing mail to alias) alias owner lookup.
• Workaround: dbl.spamhaus.org rejects lookups with “No IP queries” even if the name has an alphanumerical prefix. We play safe, and skip both RHSBL and RHSWL queries for names ending in a numerical suffix.
• The “sendmail -t” command reported “protocol error” instead of “file too large”, “no space left on device” etc.
• The Postfix Milter client reported a temporary error instead of “file too large” in three cases.
• Linux kernel version 3 support. Linus Torvalds has reset the counters for reasons not related to changes in code.

Howto upgrade postfix.

The release of OS X 10.7, or Lion as it will be more widely known is getting close. The blogosphere is already mentioning the release of the “Golden Master” to developers. This also means that more and more details on how and what we will be included or not. One revelation that cleared our earlier worries on a server release were cleared a month ago with the notion of the server becoming an add-on costing you $50,- which is still a lot cheaper then the earlier $499,- server version of OS X.

An important thing for myself came with the, propably, final EULA. Finally it is allowed to run OS X virtualized on your Mac Desktop without having to buy extra licenses. Quote from the 10.7 EULA:

to install, use and run up to two (2) additional copies or instances of the Apple Software within virtual operating system environments on each Mac Computer you own or control that is already running the Apple Software.

This will bring my efforts back to being legal, as I run virtual Mac’s on my iMac (here is the howto do it yourself). For testing and development. It’s great to try things out on a virtual machine before you might ruin your desktop or server and with Lion you can do it legally as well!

Update: It looks like the release date for Lion is going to be the 14th of July!