/* US-ASCII is a subset of the ISO-8859-X and UTF-8 character sets */
if (!strncasecmp("ISO-8859-", mm_charset, 9) ||
!mh_strcasecmp("UTF-8", mm_charset)) {
alt_charset = "US-ASCII";
/* US-ASCII is a subset of the ISO-8859-X and UTF-8 character sets */
if (!strncasecmp("ISO-8859-", mm_charset, 9) ||
!mh_strcasecmp("UTF-8", mm_charset)) {
alt_charset = "US-ASCII";