Sendmail relay config

To allow relay of certain host, add a new record in /etc/mail/access in sendmail server. For example, if you want your sendmail server to be used by an outsider who want to send email to another outsider(relay), add a record in /etc/mail/access file as follow:

youcanrelaymyserver.com
youcanalsorelaymyserver.net
youcanrelaytoo.org

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