`(((type . "missed") 
   (user . ,(alist-ref 'user-name to-identity))
   (host . ,(alist-ref 'registrar to-identity))))

`(((type . "missed") 
   (user . "772")
   (host . "quack1")))

(define (event-dispatch event-vars)
  (mutex-lock! server-mutex)

  (pp event-vars)

  (unless (null? event-filters)
	  (let event-filter-loop ((event-filter (car event-filters))
				  (remaining-event-filters (cdr event-filters)))
	    (let filter-var-loop ((filter-var (car event-filter))
				  (remaining-filter-vars (cdr event-filter)))
	      (if (equal? (cdr filter-var)
			  (alist-ref (car filter-var) event-vars))
		  (if (null? remaining-filter-vars)
		      (begin
			(set! event-filters (delete event-filter event-filters))
			(mailbox-send! events event-vars))
		      (filter-var-loop (car remaining-filter-vars)
				       (cdr remaining-filter-vars)))
		  (unless (null? remaining-event-filters)
			  (event-filter-loop (car remaining-event-filters)
					     (cdr remaining-event-filters)))))))
  (mutex-unlock! server-mutex))

"fußnase"
"missed"
"missed"
"fußnase"
"772"
"772"
"fußnase"
("quack8")
"quack8"