How to enable Sharepoint debug logging

Open the web.config file from the website you want to debug.
Change these entries:

<SafeMode MaxControls="200" CallStack="true" ...>

<customErrors mode="Off" />

<compilation batch="true" debug="true">

Enable IE8 RunAs

By default in IE8, it is not possible anymore to start a new browser process as an other user. To restore this functionality, follow these steps:

1. open regedit
2. go to the key HKLM\Software\Microsoft\Internet Explorer\Main
3. add a DWORD TabProcGrowth with a value of 0

Cleanup Exchange SMTP Queues

Ever wanted to cleanup all mail sent from one user, through all Exchange SMTP queues?

Use the tool ‘Advanced Queuing Administration Command Line Interface tool (aqadmcli.exe)’!
The tool can be downloaded from the Microsoft PSS FTP Server.

Once downloaded, start up a command prompt and execute these commands to delete all mail sent from one specific user:

setserver "Servername"
delmsg flags=sender,sender=user@domain.com