SELECT
nick, email
FROM
nickserv
WHERE
(flags & 0x00000002) = 0 # Skip forbidden
AND (flags & 0x00000004) = 0 # Skip noxpire flags
AND (flags & 0x00000020) <> 0 # Just authenticated
AND NOT IsNull(email) # Skip null emails
AND FLOOR((t_expire - UNIX_TIMESTAMP(NOW()))/86400) = 5
GROUP BY email