Tag: smtp tls

Stopping Forged Email 4: Your Last Resorts

March 4, 2015

In previous posts we have examined how hackers and spammers can send forged email and how it can be extremely difficult to differentiate these messages from legitimate messages. We have looked at the various common techniques for anti-fraud such as SPF, DKIM, and DMARC and seen that, while these technologies can help a lot, they all have limitations; they all […]

Who does not support SMTP TLS for Secure Inbound Email Delivery?

November 7, 2013

We are frequently asked who supports TLS to secure inbound email delivery. This is especially important for customers who need to be HIPAA-compliant, as email transport encryption over TLS is sufficient for HIPAA-compliant communications to end-users, so long as the TLS is configured to be sufficiently strong. While it is possible to tell who supports […]