I am currently hosting a site on my server. The IP is dynamic and listed on the SORBS spam blocking list. So I am trying to to force sendmail to use my ISP's server for send outgoing mail. I added the following lines to my sendmail.mc
define(`SMART_HOST',`mail.myrisp.net')dnl <--- Your ISP's mail server name goes here
MASQUERADE_AS(yourisp.net)dnl ><--- Your ISP's domain name goes here
but the outgoing mail comes back saying I need authentication.
How do I get senmail to authenticate my ISP's server before sending mail?