Optional data
				data: { defaultSenderChanged: boolean; emailsUpdated: boolean; error?: string; hasCredentials: boolean; isValid: boolean; lastValidated: null | string; newDefaultEmail: null | string; previousDefaultEmail: null | string; updateCode: "NONE" | "MAILJET_SENDER_LIST_SYNCED" | "MAILJET_DEFAULT_SENDER_CHANGED" }
				
				
					Type declaration
					
						- 
							defaultSenderChanged: boolean
- 
							emailsUpdated: boolean
- 
							Optional error?: string
- 
							hasCredentials: boolean
- 
							isValid: boolean
- 
							lastValidated: null | string
- 
							newDefaultEmail: null | string
- 
							previousDefaultEmail: null | string
- 
							updateCode: "NONE" | "MAILJET_SENDER_LIST_SYNCED" | "MAILJET_DEFAULT_SENDER_CHANGED"