How can we help?

Does Transport Layer Security (TLS) improve deliverability?

At this time, there is no proof that Transport Layer Security (TLS) improves deliverability. However, TLS does ensure the secure transmission of the email as long as the receiving server supports TLS.

How can we help?

If you are a client or partner, make sure to log in to see all content. If you are a SFMC customer, log in to your account to access the Return Path Platform and Help Center.

Related articles