}
header_content_type = modest_tny_mime_part_get_header_value (part, "Content-Type");
- header_content_type = g_strstrip (header_content_type);
- header_content_type_lower = g_ascii_strdown (header_content_type, -1);
+ if (header_content_type) {
+ header_content_type = g_strstrip (header_content_type);
+ header_content_type_lower = g_ascii_strdown (header_content_type, -1);
+ } else {
+ header_content_type_lower = NULL;
+ }
if (header_content_type_lower) {
tmp = strstr (header_content_type_lower, "charset=");