trouble with email's profil changing

hello, i'd noticed today that when a member change is email address, dolphin still keep in memory the old address. i look in the DB and it's the new one who is indicate, but when dolphin (or i) send with cron job a mail, it's till to the old address. And i have a big problem that for testing and configuring the D7 version i used to put a"1" before each aemail address of the old members, and when i activate my site in the version, i just cut this "1". But still Dolphin use the old address. Anyone could help me, please

i found the error, this is the cache of profil wich still keep the wrong adress mail,