Formatting of standard Print Fromat is disturbed when sent through mail

I have issue regarding Standard Print formats when they are sent as attachment using send mail function on form.the formatting gets Disturbed(eg:Borders of the tables are not shown), and more you can find it here Link to is the attachment that i recieved, when i send standard print format.
when i send customized print format the formatting is ok and also when i see print preview the formatting is ok as well.problem is when i send it as attachment through erpnext.

Roshan K.

Sorry link has issue.
Below is link:

Can you try putting in the host_name as the URL that use in site_config.json? If you’ve setup for production use, try using http://localhost as the value.