Recipients of email appender depending on log message, possible?

[Hans Schwaebli]

I want to send a email depending on the log text. I add the terminal ID to the 
log text, which is the one of the user who caused the exception, which is 
logged at error level. Depending on that ID (or a regular expression) I want to 
send the email to certain recipients.
   
  Does this work with log4j configuration out of the box? What is the solution 
for this?

       
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