postmark

Use when working with Postmark email platform - routes to specific sub-skills for sending emails, processing inbound email, managing templates, or configuring webhooks.

1.24x

Quality

80%

Does it follow best practices?

Impact

98%

1.24x

Average score across 3 eval scenarios

Securityby

Advisory

Suggest reviewing before use

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Evaluation results

98%

28%

Shipping Notification Batch Sender

Batch email with error handling

Criteria

Without context

With context

MessageStream specified

100%

Correct stream for type

100%

API token from env var

87%

100%

Batch size limit respected

100%

Sequential chunk sending

100%

Partial failure handling

50%

100%

Retryable errors only

70%

80%

Exponential backoff

100%

No real test addresses

100%

Correct SDK installed

100%

Process log artifact

100%

97%

15%

Email Delivery Tracking Webhook Service

Secure webhook handler with bounce management

Criteria

Without context

With context

Immediate 200 response

100%

Async processing pattern

62%

Webhook authentication present

100%

401 not 403 for auth failure

100%

Constant-time secret comparison

100%

MessageID deduplication

100%

HardBounce permanent removal

100%

SoftBounce treated differently

100%

RecordType routing

100%

SpamComplaint suppression

100%

Secret in env var

100%

13%

Branded Transactional Email Template System

Template system with layout inheritance

Criteria

Without context

With context

TemplateAlias used for sending

100%

Layout includes @content

100%

Triple braces for HTML vars

100%

Standard references Layout

100%

Template validation step

100%

Account token for cross-server push

100%

Server token for sending

100%

TemplateModel passed

100%

MessageStream on template send

100%

No client-side rendering

100%

Layout deletion safety

50%

100%

Repository: ActiveCampaign/postmark-skills
Commit: 73ea6bf

Evaluated: 6 days ago
Agent: Claude Code
Model: Claude Sonnet 4.6

Table of Contents

Shipping Notification Batch Sender Email Delivery Tracking Webhook Service Branded Transactional Email Template System

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