1 diff --git a/mailutils/sendmail.c b/mailutils/sendmail.c
2 index 8ddb782..b542099 100644
3 --- a/mailutils/sendmail.c
4 +++ b/mailutils/sendmail.c
5 @@ -150,7 +150,7 @@ static char *sane_address(char *str)
9 - if (!isalnum(*s) && !strchr("_-.@", *s)) {
10 + if (!isalnum(*s) && !strchr("+_-.@", *s)) {
11 bb_error_msg("bad address '%s'", str);