I just wondered if it's possible to set an environment variable depending on the basic authentication user. I tried the following versions, but none of them work (obviously none of them is documented either):
SetEnvIf HTTP_USER "marco" MYENV=foobar
SetEnvIf USER "marco" MYENV=foobar
SetEnvIf REMOTE_USER "marco" MYENV=foobar
Cheers, Marco