• TRIAGE
  • ANALYSIS
  • ACTION
  • HUMAN

How to troubleshoot email delivery failures with your AI

Connect Postmark to your AI client to turn raw bounce data into actionable fixes. Once connected, your agent handles the heavy lifting of parsing error logs.

Ask AI about this page

Short answer

Why are my emails bouncing?

Your AI pulls bounce statistics and specific SMTP error logs from Postmark to identify patterns like invalid addresses or blocked IPs. It then interprets the technical error codes to tell you exactly what to change. You get a clear breakdown of the root causes.

The outcomes.

Where every issue lands.

The AI categorizes your delivery failures into specific buckets for faster resolution.

TRIAGE

Error categorization

The AI uses bounce stats to group failures by type, such as hard bounces or content filtering. You see which issues are widespread and which are isolated.

ANALYSIS

Root cause identification

By reading SMTP dumps, your agent finds the specific reason a recipient's server rejected the message. You get the technical explanation without digging through logs.

ACTION

Fixes for your code

The AI suggests changes to your sending patterns or email content based on the bounce data. You receive specific advice to improve your sender reputation.

HUMAN

Manual intervention

The AI flags high-priority issues that require you to manually update your mailing list or contact a provider. You decide when to prune addresses or adjust your DNS settings.

The workflow

What your AI does when a bounce occurs.

Instead of you hunting through dashboards, your agent monitors and interprets the data stream.

  1. Scan for failures

    The agent checks your recent outbound activity to see how many messages failed to reach their destination.

    get_outbound_bounces_stats

  2. Isolate specific errors

    It searches through your history to find specific instances of bounces that match certain error patterns.

    search_bounces

  3. Inspect the technical logs

    The AI pulls the full SMTP dump for a failed message to read the exact response from the receiving mail server.

    get_bounce_dump

  4. Summarize the bounce

    It retrieves the high-level details of a specific bounce event to explain the failure in plain English.

    get_bounce

Try it

Copy these to start.

Use these prompts to kick off the troubleshooting process.

Starting points

These are starting points. Replace the specific identifiers like email addresses or timeframes with your own data.

Postmark Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_0kWRWI9CKHfn2LoLRpwQevUBwFA4SoruFIdWN2E8/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — Postmark capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "postmark-extended-1-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_0kWRWI9CKHfn2LoLRpwQevUBwFA4SoruFIdWN2E8/mcp"
    }
  }
}
Copy into chat04

  • Show me the outbound bounce stats from the last 24 hours.

  • Find all bounces in Postmark that happened today and tell me why they failed.

  • Get the bounce dump for the last failed message to a Gmail address and explain the error.

  • Search for bounces from the last week and summarize the most common error code.

  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Start here

Connect Postmark once, then ask.

You only need to link your account once. Your credentials stay encrypted, and you can immediately start asking your agent questions about your email health.

Connect Postmark to your AI

FAQ

How this task behaves.

  • 01

    Can the AI fix my bounce issues automatically?

    No. The AI identifies the cause and suggests fixes, but you must manually update your lists or change your sending configuration.

  • 02

    Can the AI send new emails through Postmark?

    No. This MCP is designed for reading bounce data and statistics, not for sending outbound messages.

  • 03

    Does the AI see my actual email content?

    The AI can access the SMTP dump, which includes the technical headers and error responses from the receiving server.

  • 04

    How does the AI know which bounces to look at?

    You tell the AI which timeframe or specific recipient to look for, and it uses the available tools to filter the data.

  • 05

    Can the AI delete bounces from my Postmark history?

    No. The tools only allow the AI to read and search existing bounce data.

  • More questions about Postmark? The Connector page answers them. See everything the Postmark Connector can do

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