Simple Mail Transfer Protocol (SMTP) Relay

SMTP Relay provides Customers the ability to send outbound email from devices (such as printers or servers) or applications.


  • Enable printers or applications to send email
  • Send emails from any IP address


  • IP Based Authentication
  • Maximum 30 MB message


  • Allows emails coming from your chosen IP address to go through without authentication

Service support - Deploy approved applications to client’s Virtual Desktop environment. All applications will go through a certification processCDT
End-user support - Provide end-user support for the SMTP RELAY running on CDT systems.
Note: This does not include the support of end-user’s end-point device, LAN or WAN connections
Security monitoring - Monitor the SMTP service infrastructure. CDT
Security monitoring - Notify the customer, isolate and remediate any detected security threats.CDT
Update monitoring and management - Monitor customer SMTP Relay to ensure the infrastructure is always updated according to CDT security policiesCDT
Identity management - Create service accountsCDT
Change management - Notify customers, in advance, when changes need to be made to their SMTP Relay environment.CDT
Change management - Maintain a change management process and provide a central point of contact to the CDT SMTP Relay support team.Customer
End-user support - Support on-site infrastructure: for all network and internet connectivity, client device configuration, peripheral devices, proxy server, firewalls and WAN connectivity.Customer
End-user support - Support line-of-business applications: custom software, 3rd-party software, design tools, and anything not specified in this documentCustomer
Security monitoring and response - Provide a list of contacts to CDT in the event that a security incident is detected that is outside the scope of the SMTP Relay scope.Customer
Security monitoring and response - Notify CDT of potential impacts of any non-SMTP Relay security incidents that may impact the service (example: Local Virus or DDOS attack).Customer
LAN network infrastructure - Setup, configuration and management (including troubleshooting and debugging) of all networking-related infrastructure and services, including internet connectivity, network controls, proxy configuration and remote connectivity infrastructure.Customer

The rate schedule represents standard CDT services. If a Customer requires technology solutions that are not part of the standard, CDT will review the Customer’s request and provide customized pricing as necessary.

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Subscriptions to this service are available. 

To request an SMTP Relay account, or to Add, Change or Delete maintenance activities, please submit a Case/Request:

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SMTP Relay Enrollment Process Graphic

SMTP Relay Enrollment Process