Index: apps/app_voicemail.c
===================================================================
--- apps/app_voicemail.c	(revision 48480)
+++ apps/app_voicemail.c	(working copy)
@@ -1892,7 +1892,7 @@
 			ast_log(LOG_WARNING, "Cannot allocate the channel for variables substitution\n");
 	} else
 		fprintf(p, "From: Asterisk PBX <%s>\r\n", who);
-	fprintf(p, "To: %s <%s>\r\n", vmu->fullname, vmu->email);
+	fprintf(p, "To: \"%s\" <%s>\r\n", vmu->fullname, vmu->email);
 	if (emailsubject) {
 		struct ast_channel *ast;
 		if ((ast = ast_channel_alloc(0, AST_STATE_DOWN, 0, 0, 0))) {