FAQs - Domain Authentication

FAQs - Domain Authentication




If you saw the above message, please click Initiate Domain Authentication. You will need to go through the domain authentication process before sending mass mail.


In this article:

What is Domain Authentication and why is it necessary?

In order to assist with improved deliverability of your mass email, Lasso requires your domain to be authenticated. Domain authentication identifies an email sender as legitimate to avoid the email being placed in a bulk or junk folder, or being completely blocked, by Internet Service Providers (ISPs).

Regardless of how many hours are spent on creating an email template, it will all be wasted if the emails are not delivered. Authenticating that an email was sent from a valid source is the first step ISPs such as AOL, Microsoft and Yahoo use in filtering spam. Because of the staggering volume of email being sent daily to these ISPs, they will treat you as “guilty until proven innocent”. You need to work thoroughly and with diligence to prove that you are a legitimate sender.

Note: You will need to work with your email administrator and add your domain to Lasso in order to initiate the domain authentication process. Once authentication has been initiated, Lasso must be notified so that the process can be completed.

How does Domain Authentication work?

Lasso uses Amazon SES to send your mass mail.  Your domain is associated with a set of Domain Name System (DNS) records that you manage through your DNS provider. A TXT record is a type of DNS record that provides additional information about your domain. Each TXT record consists of a name and a value, which a Client Administrator generates in Lasso’s Client Admin Center. Once your TXT name and value has been generated, your email administrator needs to add these to your domain's DNS server. The domain verification process is complete when Amazon SES detects the existence of the TXT record in your domain's DNS settings. If a TXT record is not in place, 100% of your mass mailings will fail. This will be indicated in the Mass Mail Details Report with a Failure Reason of Other.

Implementing CNAME records are also recommended. A CNAME (Canonical Name record) is a type of resource record in the DNS that maps one domain name to another. CNAME records allow multiple services (e.g. FTP server and web server) to run from a single IP address. If the IP address changes, the change needs only to be recorded in one place within the network.

Before you send a mass mail using Lasso’s email marketing functionality, be sure that you have gone through the authentication process. Completing this means that Lasso has been approved to send emails on your behalf. If authentication has been applied incorrectly, messages delivered to Email Service Providers (ESPs) will display an added “... via” tag until the authentication updates are complete.

Please refer to the following links for more information:

Initiate Domain Authentication

Note: You must be a Client Administrator to access the Domain Authentication functionality.

1 – Click on the 3 dots to the right of your client name under Client Admin.


2 – Enter your domain name in the space provided and click ADD DOMAIN.

Note: If you have separate domains for different communities in Lasso, you will need to enter each domain.


3 – Copy the TXT Name and TXT Value and have your email administrator add them to your domain's DNS server.

Note: Please refer to for more information.

4 – If you are implementing CNAMES, which is recommended, copy the Names and Values and have your email adminstrator add them to the DNS configuration for your domain.

– Once domain authentication has been initiated as in the above steps, you will need to notify Lasso so that the process can be completed. Please email to inform them that you are ready for the final step. 

Note: Please refer to for more information.