You are correct. Rick (on his message board) replied and said that this error means that server does not support authentication. And actually, without changing user name and password, I changed the server IP and error was gone.
>My guess is, you are using some form of authentication that SMTP server in question does not support
>
>>
>>When using WwIpStuff to send email message (authenticated) I (the customer) get the message:
>>
>>500 5.5.1 Command unrecognized: "auth login"
>>
>>
>>Anyone knows what "auth login" could be pointing at?
>>
>>TIA.
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