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Send form mail using an SMTP relay server

To send form mail, we recommend using applications or scripts that use the PHP mail() function (for example, Contact Form 7 for WordPress). But if your contact form requires Simple Mail Transfer Protocol (SMTP), you can use the relay settings below.

Note: While we're happy to provide information on form mail, we do not directly support the functions and reliability of third-party plugins, scripts, or mail providers. For more information, view the Statement of Support.
SettingWhat to use
Port25
SMTP AuthenticationFalse, None, or turn off
SSL or Secure ConnectionFalse, None, or turn off
Server or Host1localhost
Add an SPF record2v=spf1 include:secureserver.net -all
  1. If you use a PHP script and the mail() function, you do not need to specify a relay server.
  2. If you use an SMTP relay server, you must add the appropriate sender policy framework (SPF) record. Without this, your form emails can fail authentication and not be received.
SettingWhat to use
Port25
SMTP AuthenticationFalse, None, or turn off
SSL or Secure ConnectionFalse, None, or turn off
Server or Host1relay-hosting.secureserver.net
Add an SPF record2v=spf1 include:secureserver.net -all
  1. If you use a PHP script and the mail() function, you do not need to specify a relay server.
  2. If you use an SMTP relay server, you must add the appropriate sender policy framework (SPF) record. Without this, your form emails can fail authentication and not be received.

More info