public void setDefaultMailDomain(String defaultMailDomain) {
        this.defaultMailDomain = defaultMailDomain;
    }
<p>
The default mail domain associated with the organization.
</p>

@param defaultMailDomain
       The default mail domain associated with the organization.
aws-java-sdk-workmail/src/main/java/com/amazonaws/services/workmail/model/DescribeOrganizationResult.java