OFFF
(void) sm_strlcpy(&fmtbuf[OFFF], "<%s@%s>",
sizeof(fmtbuf) - OFFF);
(void) sm_strlcpy(&fmtbuf[OFFF], "<%s>",
sizeof(fmtbuf) - OFFF);
(void) sm_strlcpy(&fmtbuf[OFFF], "%s <%s@%s>",
sizeof(fmtbuf) - OFFF);
(void) sm_strlcpy(&fmtbuf[OFFF], "%s <%s>",
sizeof(fmtbuf) - OFFF);