postmark-send-email
Use when sending transactional or broadcast emails through Postmark — single sends, batch (up to 500), bulk, or template-based emails with support for attachments, tracking, and message streams.
91
86%
Does it follow best practices?
Impact
99%
2.15xAverage score across 3 eval scenarios
Passed
No known issues
Evaluation results
97%
62%Delivery Notification Mailer
Batch send with chunking and retry
Batch endpoint
0%
100%
500-message chunking
0%
100%
Per-result error check
0%
100%
Retryable error filter
50%
100%
Exponential backoff
33%
100%
MessageStream set
100%
100%
POSTMARK_SERVER_TOKEN
40%
70%
Partial failure isolation
100%
100%
100%
39%Vaultly Email Notification System
Template sends with stream separation
TemplateAlias used
100%
100%
Outbound stream (transactional)
0%
100%
Broadcast stream (marketing)
0%
100%
Streams not shared
33%
100%
Tracking disabled (sensitive)
100%
100%
POSTMARK_SERVER_TOKEN
30%
100%
Test token referenced
100%
100%
No real-provider test addresses
100%
100%
Template endpoint used
100%
100%
100%
56%Finova Monthly Statement Mailer
Attachments and inline image email
Base64 attachment
53%
100%
ContentID inline image
53%
100%
cid: reference in HtmlBody
100%
100%
HTTP API used
0%
100%
POSTMARK_SERVER_TOKEN
0%
100%
MessageStream set
0%
100%
Test token referenced
20%
100%
No real-provider test addresses
100%
100%
MessageID captured
100%
100%
- Repository
- ActiveCampaign/postmark-skills
- Commit
73ea6bf
- Evaluated
- Agent
- Claude Code
- Model
- Claude Sonnet 4.6
Table of Contents
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