E-mail config

when i try to configure-email setting the following error presented
Failure
Error [120]: Ran into problems sending Mail. Response: 553 We do not relay non-local mail, sorry. Error [120]: Ran into problems sending Mail. Response: 553 We do not relay non-local mail, sorry. Error [120]: Ran into problems sending Mail. Response: 503 No valid recipients specified. Error [120]: Ran into problems sending Mail. Response: 503 Bad sequence of commands.

plaese help me

What is the setup you add ?

Disable all e-mails sendings (for test purposes or demos) No

Method to use to send EMails SMTP/SMTPS socket library
SMTP/SMTPS Host (By default in php.ini: localhost) smtp.gmail.com
SMTP/SMTPS Port (By default in php.ini: 25) 465
SMTP ID if authentication required
SMTP Password if authentication required
Use TLS (SSL) encrypt No (SSL functions not available in your PHP)

Sender e-mail for automatic emails (By default in php.ini: Undefined) my@gmail.com
Sender e-mail used for error returns emails sent
Send systematically a hidden carbon-copy of all sent emails to my@gmail.com