What is Email Authentication?

Normally when ThinkSend deploys email, we set the email's public "From" email address to match your domain, so the email will appear to be coming from the client. So instead of seeing a "From" of say yourname@thinksend.com, it would be seen as coming "From" yourname@yourdomain.com.

However, there are also hidden email "Received from" tags in the email header (not to be confused with the public "From" address). The "Received from" and "Received by" tags show what domain actually sent the email. Email deployed using ThinkSend will by default show one of our domain names in the "Received from" tags (such as viewcampaign,com, createsend.com, etc.).

Since the public "From" does not match the hidden "Received from" tags, many Internet Service Providers will consider your email as spam, unless you "authenticate" ThinkSend against your Web/email server.

For details on how to do this, please see our Email Authentication page in our Anti-Spam section.