| NewsletterEvents Fields | 
The NewsletterEvents type exposes the following members.
| Name | Description | |
|---|---|---|
| GeneratePreview | 
            Event that is called when preview is being generated for a subscriber. Altering of preview content that is being displayed is available through 
            PreviewHtml property. The event is triggered in GetPreviewHTML(IssueInfo, SubscriberInfo) method.
              | |
| GenerateQueueItems | 
            Fired when issue is being sent in newsletter. If you cancel this event, e-mails won't be generated into newsletter queue (see EmailQueueItemInfo) and sent afterwards.
            You can use this event to manually add items to queue for your custom subscriber.
              | |
| ObtainSubscriberAddresses | 
            Is called when newsletter module is asking other modules that have custom subscriber type (see SubscriberType property) 
            for e-mail addresses that an issue will be sent to. The event arguments are a SubscriberInfo of the subscriber that the e-mails are being
            obtained and reference to a set of addresses. Handlers subscribing to this event should then check whether the subscriber is of required type and fill the
            given set of addresses with its own addresses.
              | |
| ResolveMacros | 
            Fired when all newsletter text macros are being resolved. This includes:
            - resolving context-free macros for the whole issue before sending
            - resolving macros with Subscriber context for each recipient
            - resolving macros in the e-mail preview mode
            - when link tracking is enabled and tracking link is being changed to the original one, macros in original link are resolved
            - ...
              | |
| SubscriberClicksTrackedLink | 
            Raised when subscriber clicks any of the email link and tracking of email link is enabled.
              | |
| SubscriberOpensEmail | 
            Raised when email is opened by the subscriber and tracking of email opening is enabled.
              | |
| SubscriberUnsubscribes | 
            Fired when email of subscriber is being unsubscribed.
              |