Through not beeing a postfix problem, postfix may be able to rewrite the From value.
eg. localhost.company.com can be rewritten to company.com by this rule
masquerade_domains = company.com
Or more generic since $myorigin is by default read from /etc/mailname
masquerade_domains = $myorigin
Through not beeing a postfix problem, postfix may be able to rewrite the From value. company. com can be rewritten to company.com by this rule
eg. localhost.
masquerade_domains = company.com
Or more generic since $myorigin is by default read from /etc/mailname
masquerade_domains = $myorigin