Index: branches/RC/core/units/general/helpers/mailing_list_helper.php
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diff -u -N -r11319 -r11657
--- branches/RC/core/units/general/helpers/mailing_list_helper.php	(.../mailing_list_helper.php)	(revision 11319)
+++ branches/RC/core/units/general/helpers/mailing_list_helper.php	(.../mailing_list_helper.php)	(revision 11657)
@@ -40,7 +40,7 @@
 			}
 
 			// 3. set recipient specific fields
-			$esender->SetEncodedEmailHeader('To', $email, $email);
+			$esender->SetTo($email, $email);
 			$esender->Deliver(null, $mailing_id, false);
 
 			// 4. write to log