If, like me, you don’t use Windows, then you probably rely on Adium or Pidgin for instant messaging.
As of this morning neither Adium or Pidgin has not been able to connect to the MSN messenger servers for instant messaging.
If you’re on a Mac you can install the Microsoft Messenger for Mac software or you can downgrade Adium to an older version.
The Pidgin developers are aware of the issue and are promising to release a fix, though when remains to be seen
For more in depth technical details check out the post on the Adium blog

From Ken Stanley:
I’m using Adium (v1.3.2). It was down for most of the day but it seems to be working again now.
From Michele Neylon:
Ken
Pidgin is connecting successfully now as well. Hopefully it will keep working!
Michele
From 5h4mr0(k:
I noticed the Pidgin problem. To fix it download
http://msn-pecan.googlecode.com/files/msn-pecan-0.0.17.exe
Restart Pidgin
Modify your MSN account settings, and change the protocol from MSN to WLM.
From John Handelaar:
apt-get install msn-pecan
Then delete your MSN account and re-add it as a ‘WLM’ account instead.
Last night it was a workaround, now it’s more “ooo, it can do file transfers at above 1KBps, I’ll keep it”.
From Michele Neylon:
Thanks for the tips
The problem I ran into is that I use a Mac during the day, so unless Adium had released a patch I was pretty much snookered!
Michele
From Mike:
The biggest advantage of Pidgin is that it’s an open source software and it’s source code is accessible for all for free. And it is guaranteed that there’s no backdoor.