Guide

Data

Aurora SendCloud's Data provides detailed status data of the entire lifecycle of each email

Email Data & Analytics

Gain complete visibility into your email performance with Aurora SendCloud's comprehensive tracking and analytics platform. Monitor every stage of your email campaigns—from initial send through final delivery—with real-time status updates and detailed performance metrics.

Our advanced tracking system captures the complete email delivery lifecycle, providing full lifecycle event monitoring for requests, deliveries, opens, clicks, unsubscribes, bounces, spam reports, and routing data.

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All email status and event data in Aurora SendCloud is retained for 6 months by default, giving you extensive historical insights.

Monitor your email performance across four essential status categories to optimize delivery success and identify improvement opportunities:

Delivered

Successfully delivered to the recipient's inbox. The email reached its final destination and was accepted by the mailbox provider.

Sending

Currently in progress. Your email is queued or being processed through our delivery infrastructure.

Soft Bounce

Temporary delivery failure. The recipient server temporarily rejected the email or accepted it first and later reported a delivery issue.

Invalid Email

Permanent delivery failure. Issues include invalid addresses, hard bounces, or suppression list blocks.


Understanding Email Failures

Hard Bounce vs Soft Bounce

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Hard/Soft bounce describes whether the failure is permanent or temporary.

Bounces are delivery failures reported by a recipient's mail provider. Aurora SendCloud separates these failures into permanent and temporary categories so you can decide whether to remove an address, retry delivery, or investigate sending reputation.

Hard Bounce means the email cannot be delivered permanently. Common causes include invalid email addresses, non-existent mailboxes, or recipient-side policies that permanently reject the message. In Aurora SendCloud, these failures are typically reflected under Invalid Email and should be treated as addresses that need cleanup or suppression review.

Soft Bounce means the email cannot be delivered temporarily. Common causes include a full mailbox, temporary recipient server issues, IP or domain rejection, or spam filtering. These addresses may become deliverable later, so review the bounce reason before removing them from your list.


Synchronous vs Asynchronous Bounces

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Synchronous/Asynchronous bounce describes when the failure is reported.

What Are Synchronous and Asynchronous Bounces?

Synchronous Bounces occur during the SMTP (Simple Mail Transfer Protocol) conversation between Aurora SendCloud and the recipient's mail server. When our system attempts to deliver your email, the recipient server immediately rejects it with a 4xx (temporary) or 5xx (permanent) error code. This rejection happens in real-time, during the same connection session.

Asynchronous Bounces (also known as Out-of-Band bounces or Delayed bounces) occur after the initial SMTP session has completed successfully. The recipient server initially accepts the email with a 250 OK response, then later discovers it cannot deliver the message. The server then sends a Non-Delivery Report (NDR) back to Aurora SendCloud, typically to the Return-Path address.

Key Difference: Synchronous bounces are immediate rejections during delivery; asynchronous bounces are delayed notifications sent after initial acceptance.

Webhook Event Enhancement

Aurora SendCloud provides the asynchronousBounce field in bounce-related webhook events to help you distinguish between these types programmatically.


Email Failures Classifications

Invalid Email Classifications

When emails fail to deliver, understanding the specific reason helps you maintain list hygiene and improve deliverability:

  • Blacklist: Address exists on Aurora SendCloud's suppression lists and will be automatically blocked
  • Unsubscribe: Recipient has opted out; SendCloud will not deliver future emails to this address
  • Server Error: Connection issues prevent our servers from reaching the recipient's mail provider
  • Format Error: Email address format is invalid according to Aurora SendCloud or the receiving mail provider
  • Not Exist: The receiving mail provider confirmed this email address doesn't exist
  • Spam: Content or sending behavior flagged as spam by the receiving mail provider
  • Rejected: Email rejected due to recipient-specific settings or provider policies
  • Other: Additional failure reasons—view detailed logs by clicking individual records

Managing the Aurora SendCloud Blacklist

When an email shows as "blacklisted," the address appears on one of our suppression lists: Complaint List, Block List, or Bounce List. To resume sending to these addresses:

  1. Remove the address from the relevant suppression list
  2. Configure bypass rules for specific scenarios
  3. Contact support for assistance with list management

Soft Bounce Classifications

Soft bounces indicate temporary delivery issues that may resolve on subsequent attempts:

  • Server Error: Recipient's mail provider experienced internal service disruptions
  • IP Rejection: Your sending IP or domain is temporarily blocked by the recipient's provider
  • Not Exist: Recipient's mail provider couldn't verify the email address exists
  • Spam: Email content or sending patterns triggered spam filters
  • Rejected: Email rejected due to recipient settings or provider policies
  • Other: Other temporary issues preventing delivery

Email Engagement Tracking

Access comprehensive engagement data to understand how recipients interact with your emails.

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Open and click tracking must be enabled in your account settings to record engagement events.

Engagement Data Points

  • Event Type: Whether the recipient opened the email or clicked a link
  • API User: The sending account used for the email
  • Recipient: Target email address
  • Send Time: When Aurora SendCloud successfully processed your send request
  • Engagement Time: Exact timestamp when the recipient opened or clicked
  • IP Address: Location data from the recipient's engagement
  • Device Information: Detailed system, browser, and device data captured during engagement
  • Link Details: For click events, specific URL information is recorded

Accessing Your Data

Choose from multiple methods to access and analyze your email performance data:

Real-Time Monitoring

  • Live Dashboard: Monitor email performance as events occur
  • Instant Alerts: Get immediate notifications for critical delivery issues

Integration Options

  • REST API: Programmatically access delivery and engagement data
  • Webhooks: Receive real-time event notifications directly to your systems
  • CSV Exports: Download comprehensive datasets for offline analysis

Ready to optimize your email performance? Contact our support team for assistance with tracking setup, data analysis, and deliverability improvements.