One of the new features in the brand new release 8 of IBM's Lotus Notes an Domino is the SMTP outbound authentication (SMTP AUTH) to relay hosts. Most of the ISPs only allow authenticated users / server to relay mail thru their server. To setup this new feature follow these
INDUSTRY-FIRST - Dual connector with support for USB-C and LightningFAST - Authenticate up to 4X faster than other methodsEASY - Intuitive user experience and fast setup, deployment, and useSCALABLE - Integrates with systems tailored for all types and sizesEFFICIENT - Reduce helpdesk tickets for password reset or account lockoutMULTI-PROTOCOL - Bridge between authentication methods and systemsWORKS - YubiKey 5 Series works with the most web services YubiKey 5Ci is the first of its kind.Review the growing number of compatible apps.