i'm sending from my email a.abuzaid@xxxxxxxxxxxxxx to hotmail sending without any problem . when i send from another user j.abuasab@xxxxxxxxxxxxxx to hotmail he send the mail but i don't recieve it at hotmail . this problem temproly appear some users can send and some user can't . the user who can't send to hotmail can send every where just hotmail he can't . so i have a larg problem please help me