title: Change HELO host name when sending email
body: <p>A customer's website address is <strong>customerswebpage.com</strong> (not the real one, of course). The server itself has it's host name configured to <strong>server.customerswebpage.com</strong>, which has no A or MX type DNS records. This causes many web servers to refuse mail from this server.</p>
  
  <p>Is there an easy and/or neat way to change the HELO address the server identifies itself as? The site is built on the <strong>Symfony</strong> framework version 1.0 and we're using the <strong>sfMail</strong> plugin to send the mail. The only solution I could think of so far is taking a copy of the whole plugin and modifying it to suit our needs, as the hostname is used only internally.</p>
  
  <p>Maybe even more importantly, do you think we could say this is a DNS misconfiguration?</p>