To get access user has to authenticate with SMTP, otherwise one of the following error messages will be displayed:
Couldn't send message, Server Response: 550 Relaying is prohibited.
Couldn't send message, Server Response: 550 5.7.1 Unable to relay.
Couldn't send message, Server Response: 550 Relaying denied.
Couldn't send message, Server Response: 554 Relay access denied.
Relaying access denied error message text may differ among SMTP server software. However, the solution is to authenticate with SMTP server, using -AUTH parameter of Febooti Command line email.
When proper SMTP authentication is required, try using -AUTH AUTO switch for automatic authentication method detection. Also, user name and password has to be provided, using -USER and -PASS parameters (if NTLM authentication is used, no username and password is necessary).
C:\>febootimail -SERVER smtp.server.com -FROM firstname.lastname@example.org -TO email@example.com -MSG DOS prompt SMTP authentication -AUTH AUTO -USERNAME ******** -PASSWORD ********
This should solve the issue with SMTP relaying access denied error.
This Febooti Command line email article may be referenced as (KB ID: 516).
Please do not hesitate to contact our support department with any possible further questions or to solve practical issues connected with Command line email. The solution will be provided shortly by e-mail and eventually added to FAQ.