struct listserv_subscriber represents one subscriber on a mailing list.
struct listserv_subscriber {
char *email; //the subscribed email address
char *date; //the subscription date
char *list; //the list with the subscription
char **topics; //for now always null
int options; //subscription options
}
The parameter options contains bitwise ORed options as follows:
xxxx xxx0 POST
xxxx xxx1 NOPOST
xxxx x00x NOMAIL
xxxx x01x MAIL
xxxx x10x DIGEST
xxxx x11x INDEX
xxxx 0xxx NOREPRO
xxxx 1xxx REPRO
xx0x xxxx NOMIME
xx1x xxxx MIME
x0xx xxxx NOHTML
x1xx xxxx HTML
0xxx xxxx NOCONCEAL
1xxx xxxx CONCEAL