--- d:\asdf-install-dir\quicklisp\dists\quicklisp\software\cl-smtp-20101107-http\attachments.lisp	2011-05-24 16:49:26.599664000 +0200
+++ attachments.lisp	2011-06-29 18:31:43.010440900 +0200
@@ -58,6 +58,7 @@
 				content-transfer-encoding ;; 7 bit or 8 bit 
 				(include-blank-line? t))
   (when boundary
+    (write-blank-line sock)
     (write-to-smtp sock (format nil "--~a" boundary)))
   (when content-type 
     (write-to-smtp sock (format nil "Content-type: ~a" content-type)))