Re: smtp email configuration error

am having below error now can anyone help me with this 

[23/Jun/2018 05:59:32] "GET /contact/ HTTP/1.1" 200 11440

Not Found: /contact/contactform/contactform.js

[23/Jun/2018 05:59:34] "GET /contact/contactform/contactform.js HTTP/1.1" 404 16

637

Not Found: /contact/contactform/contactform.js

[23/Jun/2018 05:59:37] "GET /contact/contactform/contactform.js HTTP/1.1" 404 16

637

On Fri, Jun 22, 2018 at 11:25 PM, Jason <jjohns98684@gmail.com> wrote:

SMTPSenderRefused: (501, '<Your>: sender address must contain a domain', u'Your'

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