Hoax Clearing Center

This is the Planio mail system at host fsn1-app04.hosts.plan.io.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, you can contact our support team
at support@plan.io or https://plan.io/contact.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

The Planio mail system

<herniawaneliassaputra@gmail.com>: host
gmail-smtp-in.l.google.com[74.125.133.27] said: 550-5.7.26 Your email has
been blocked because the sender is unauthenticated. 550-5.7.26 Gmail
requires all senders to authenticate with either SPF or DKIM. 550-5.7.26
550-5.7.26 Authentication results: 550-5.7.26 DKIM = did not pass
550-5.7.26 SPF [turnbackhoax.id] with ip: [116.202.71.74] = did not pass
550-5.7.26 550-5.7.26 For instructions on setting up authentication, go
to 550 5.7.26 https://support.google.com/mail/answer/81126#authentication
ffacd0b85a97d-385be9a2487si959165f8f.970 - gsmtp (in reply to end of DATA
command)