Postmark Automation

1---
2name: postmark-automation
3description: "Automate Postmark email delivery tasks via Rube MCP (Composio): send templated emails, manage templates, monitor delivery stats and bounces. Always search tools first for current schemas."
4requires:
5  mcp: [rube]
6---
7 
8# Postmark Automation via Rube MCP
9 
10Automate Postmark transactional email operations through Composio's Postmark toolkit via Rube MCP.
11 
12## Prerequisites
13 
14- Rube MCP must be connected (RUBE_SEARCH_TOOLS available)
15- Active Postmark connection via `RUBE_MANAGE_CONNECTIONS` with toolkit `postmark`
16- Always call `RUBE_SEARCH_TOOLS` first to get current tool schemas
17 
18## Setup
19 
20**Get Rube MCP**: Add `https://rube.app/mcp` as an MCP server in your client configuration. No API keys needed — just add the endpoint and it works.
21 
22 
231. Verify Rube MCP is available by confirming `RUBE_SEARCH_TOOLS` responds
242. Call `RUBE_MANAGE_CONNECTIONS` with toolkit `postmark`
253. If connection is not ACTIVE, follow the returned auth link to complete Postmark authentication
264. Confirm connection status shows ACTIVE before running any workflows
27 
28## Core Workflows
29 
30### 1. Send Templated Batch Emails
31 
32**When to use**: User wants to send templated emails to multiple recipients in one call
33 
34**Tool sequence**:
351. `POSTMARK_LIST_TEMPLATES` - Find available templates and their IDs [Prerequisite]
362. `POSTMARK_VALIDATE_TEMPLATE` - Validate template with model data before sending [Optional]
373. `POSTMARK_SEND_BATCH_WITH_TEMPLATES` - Send batch emails using a template [Required]
38 
39**Key parameters**:
40- `TemplateId` or `TemplateAlias`: Identifier for the template to use
41- `Messages`: Array of message objects with `From`, `To`, `TemplateModel`
42- `TemplateModel`: Key-value pairs matching template variables
43 
44**Pitfalls**:
45- Maximum 500 messages per batch call
46- Either `TemplateId` or `TemplateAlias` is required, not both
47- `TemplateModel` keys must match template variable names exactly (case-sensitive)
48- Sender address must be a verified Sender Signature or from a verified domain
49 
50### 2. Manage Email Templates
51 
52**When to use**: User wants to create, edit, or inspect email templates
53 
54**Tool sequence**:
551. `POSTMARK_LIST_TEMPLATES` - List all templates with IDs and names [Required]
562. `POSTMARK_GET_TEMPLATE` - Get full template details including HTML/text body [Optional]
573. `POSTMARK_EDIT_TEMPLATE` - Update template content or settings [Optional]
584. `POSTMARK_VALIDATE_TEMPLATE` - Test template rendering with sample data [Optional]
59 
60**Key parameters**:
61- `TemplateId`: Numeric template ID for GET/EDIT operations
62- `Name`: Template display name
63- `Subject`: Email subject line (supports template variables)
64- `HtmlBody`: HTML content of the template
65- `TextBody`: Plain text fallback content
66- `TemplateType`: 'Standard' or 'Layout'
67 
68**Pitfalls**:
69- Template IDs are numeric integers, not strings
70- Editing a template replaces the entire content; include all fields you want to keep
71- Layout templates wrap Standard templates; changing a layout affects all linked templates
72- Validate before sending to catch missing variables early
73 
74### 3. Monitor Delivery Statistics
75 
76**When to use**: User wants to check email delivery health, open/click rates, or outbound overview
77 
78**Tool sequence**:
791. `POSTMARK_GET_DELIVERY_STATS` - Get bounce counts by type [Required]
802. `POSTMARK_GET_OUTBOUND_OVERVIEW` - Get sent/opened/clicked/bounced summary [Required]
813. `POSTMARK_GET_TRACKED_EMAIL_COUNTS` - Get tracked email volume over time [Optional]
82 
83**Key parameters**:
84- `fromdate`: Start date for filtering stats (YYYY-MM-DD)
85- `todate`: End date for filtering stats (YYYY-MM-DD)
86- `tag`: Filter stats by message tag
87- `messagestreamid`: Filter by message stream (e.g., 'outbound', 'broadcast')
88 
89**Pitfalls**:
90- Date parameters use YYYY-MM-DD format without time component
91- Stats are aggregated; individual message tracking requires separate API calls
92- `messagestreamid` defaults to all streams if not specified
93 
94### 4. Manage Bounces and Complaints
95 
96**When to use**: User wants to review bounced emails or spam complaints
97 
98**Tool sequence**:
991. `POSTMARK_GET_BOUNCES` - List bounced messages with details [Required]
1002. `POSTMARK_GET_SPAM_COMPLAINTS` - List spam complaint records [Optional]
1013. `POSTMARK_GET_DELIVERY_STATS` - Get bounce summary counts [Optional]
102 
103**Key parameters**:
104- `count`: Number of records to return per page
105- `offset`: Pagination offset for results
106- `type`: Bounce type filter (e.g., 'HardBounce', 'SoftBounce', 'SpamNotification')
107- `fromdate`/`todate`: Date range filters
108- `emailFilter`: Filter by recipient email address
109 
110**Pitfalls**:
111- Bounce types include: HardBounce, SoftBounce, SpamNotification, SpamComplaint, Transient, and others
112- Hard bounces indicate permanent delivery failures; these addresses should be removed
113- Spam complaints affect sender reputation; monitor regularly
114- Pagination uses `count` and `offset`, not page tokens
115 
116### 5. Configure Server Settings
117 
118**When to use**: User wants to view or modify Postmark server configuration
119 
120**Tool sequence**:
1211. `POSTMARK_GET_SERVER` - Retrieve current server settings [Required]
1222. `POSTMARK_EDIT_SERVER` - Update server configuration [Optional]
123 
124**Key parameters**:
125- `Name`: Server display name
126- `SmtpApiActivated`: Enable/disable SMTP API access
127- `BounceHookUrl`: Webhook URL for bounce notifications
128- `InboundHookUrl`: Webhook URL for inbound email processing
129- `TrackOpens`: Enable/disable open tracking
130- `TrackLinks`: Link tracking mode ('None', 'HtmlAndText', 'HtmlOnly', 'TextOnly')
131 
132**Pitfalls**:
133- Server edits affect all messages sent through that server
134- Webhook URLs must be publicly accessible HTTPS endpoints
135- Changing `SmtpApiActivated` affects SMTP relay access immediately
136- Track settings apply to future messages only, not retroactively
137 
138## Common Patterns
139 
140### Template Variable Resolution
141 
142```
1431. Call POSTMARK_GET_TEMPLATE with TemplateId
1442. Inspect HtmlBody/TextBody for {{variable}} placeholders
1453. Build TemplateModel dict with matching keys
1464. Call POSTMARK_VALIDATE_TEMPLATE to verify rendering
147```
148 
149### Pagination
150 
151- Set `count` for results per page (varies by endpoint)
152- Use `offset` to skip previously fetched results
153- Increment offset by count each page until results returned < count
154- Total records may be returned in response metadata
155 
156## Known Pitfalls
157 
158**Authentication**:
159- Postmark uses server-level API tokens, not account-level
160- Each server has its own token; ensure correct server context
161- Sender addresses must be verified Sender Signatures or from verified domains
162 
163**Rate Limits**:
164- Batch send limited to 500 messages per call
165- API rate limits vary by endpoint; implement backoff on 429 responses
166 
167**Response Parsing**:
168- Response data may be nested under `data` or `data.data`
169- Parse defensively with fallback patterns
170- Template IDs are always numeric integers
171 
172## Quick Reference
173 
174| Task | Tool Slug | Key Params |
175|------|-----------|------------|
176| Send batch templated emails | POSTMARK_SEND_BATCH_WITH_TEMPLATES | Messages, TemplateId/TemplateAlias |
177| List templates | POSTMARK_LIST_TEMPLATES | Count, Offset, TemplateType |
178| Get template details | POSTMARK_GET_TEMPLATE | TemplateId |
179| Edit template | POSTMARK_EDIT_TEMPLATE | TemplateId, Name, Subject, HtmlBody |
180| Validate template | POSTMARK_VALIDATE_TEMPLATE | TemplateId, TemplateModel |
181| Delivery stats | POSTMARK_GET_DELIVERY_STATS | (none or date filters) |
182| Outbound overview | POSTMARK_GET_OUTBOUND_OVERVIEW | fromdate, todate, tag |
183| Get bounces | POSTMARK_GET_BOUNCES | count, offset, type, emailFilter |
184| Get spam complaints | POSTMARK_GET_SPAM_COMPLAINTS | count, offset, fromdate, todate |
185| Tracked email counts | POSTMARK_GET_TRACKED_EMAIL_COUNTS | fromdate, todate, tag |
186| Get server config | POSTMARK_GET_SERVER | (none) |
187| Edit server config | POSTMARK_EDIT_SERVER | Name, TrackOpens, TrackLinks |
188