Predefined ESP connector components
Pega Customer Decision Hub provides ready-made connectors for the MailGun, MailJet, and SendGrid email providers. These connectors are pre-packaged as components and published on Pega Marketplace. By adding them to your application, you can leverage the provided configuration and reduce the need for custom implementation code. You can also use the infrastructure as a base to connect to other ESPs.
Available components
The following components are available on Pega Marketplace:
For information about installing the components, refer to the Installation Guides on the individual component pages.Using ESP connectors
After you install the component, start using the connector by doing the following steps:
- In App Studio, click .
- In the Account provider section, select the component, as in the
following figure:
Selecting the MailGun component 
Customizing the email headers
Emails delivered with the connectors have default implicit headers that are required for the webhook call-backs and for tracking the bounced and delivered events.
You can add additional static properties to the header.
You can also configure dynamic header values by leveraging the TransformHeader data transform.
The following value pairs are available for use in the header:
| Parameter | Required value |
| param.Issue | Business issue property |
| param.Group | Business group property |
| param.Channel | Channel property |
| param.Rank | Rank property |
| param.Direction | Direction property |
| param.OfferName | OfferName property |
| param.Priority | Priority property |
| param.EmailTreatment | TreatmentID property |
| param.CustomerID | CustomerID property |
| param.InteractionID | InteractionID property |
| param.CampaignID | CampaignID property |
| param.ProgramRunID | ProgramRunID property |
| param.Propensity | Propensity property |
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