Error message "one of the recipients was rejected by the server" reads as mail sent to multi address or fowards.
If this is true then one of the address is incorrect.
If no mail is getting out, single address, then it will be in your account settings. Contact your Internet Service Provider (ISP) for the correct settings or post your ISP here and somone will assist.
Just recently, every time I go to send an e-mail using outlook express (Windows ME) I receive an error message stating that "one of the recipients was rejected by the server"
I can receive mail, just not send it.
I'm not very computer literate, so any help would be appreciated. Thanks!