--- README.txt	Tue Dec 19 15:34:42 2006
+++ README.txt	Wed Jun 13 22:01:17 2007
@@ -22,6 +22,9 @@ Requirements
 
 - For large mailing lists, cron is required
 
+- In order to send out newsletters in html format and/or file attachments, the mimemail module must be enabled.
+  http://drupal.org/project/mimemail
+
 ------------
 Uprgrading
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