Yes. SpinOffice even uses the TLS security protocol for sending your emails to and from specified domains and email addresses if possible.



Transport Layer Security (TLS) is a security protocol that encrypts email for privacy. TLS prevents unauthorized access of email when it's in transit over internet connections.


By default, SpinOffice always tries to use TLS when sending email. However, a secure TLS connection requires that both the sender and recipient use TLS. If the receiving server doesn't use TLS, SpinOffice still delivers messages, but the connection isn't secure.


When composing a new message in SpinOffice, a padlock image on the right side in the gray top bar shows if the message will be sent with TLS. Click to check the TLS status of each recipient of your email:

  • green padlock: all recipients use TLS, your email is sent encrypted.
  • red padlock: none of the recipients use TLS, your email is not sent encrypted.
  • orange padlock: some of the recipients use TLS, your email is sent encrypted to those recipients only.