diff -ruN sylpheed-0.8.8.orig/src/procmime.c sylpheed-0.8.8/src/procmime.c
--- sylpheed-0.8.8.orig/src/procmime.c	2003-01-12 00:52:52.000000000 +0100
+++ sylpheed-0.8.8/src/procmime.c	2003-01-12 02:11:32.000000000 +0100
@@ -973,7 +973,7 @@
 		g_strstrip(buf);
 
 		p = buf;
-		while (*p && !isspace(*p)) p++;
+		while (*p && !isspace(*p) && (*p!=':')) p++;
 		if (*p) {
 			*p = '\0';
 			p++;
@@ -986,7 +986,7 @@
 		mime_type->type = g_strdup(buf);
 		mime_type->sub_type = g_strdup(delim + 1);
 
-		while (*p && isspace(*p)) p++;
+		while (*p && (isspace(*p)||(*p=="*")||(*p=='.'))) p++;
 		if (*p)
 			mime_type->extension = g_strdup(p);
 		else