Sending email from the installed sendmail server on Simple Hosting instances is possible, but restricted for your protection. No one wants to be blacklisted as a spammer, after all. If you need to send mass mailings like newsletters, for example, now there is now a solution. We have opened SMTPS (465) and the Submission port (587) on the platform, allowing you to use a third party email service provider.
For more information, see our documentation wiki.