Summary
The post asks how agencies can integrate a third-party email marketing/reseller service (e.g., via API or SMTP) with Retool to build internal dashboards for managing client email campaigns, reporting, and automation.
AI Response
Retool can connect to virtually any email provider for sending campaigns, reporting, and automation. If your provider exposes an SMTP server, you can add it as a native SMTP resource to send plain text, HTML, or Markdown email (including attachments) directly from apps and workflows. For providers with richer APIs—such as SendGrid—you can use the native integration to send templated email and manage/track contacts and activity, and any provider without a prebuilt connector can be added as a generic REST API resource. For multi-client account management, plan for per-client credentials/domains, deliverability (SPF/DKIM), and sending-rate limits, and note that the built-in Retool Email service is Cloud-only while SMTP works across deployments.
Sources
Connect to SMTP | Retool Docs
Official guide for adding an SMTP resource to send email through your own mail provider, the most direct path for connecting an external email service.
A recent solved community thread discussing options beyond Retool's built-in email and SMTP for sending through external providers—directly relevant to campaign/automation setups.
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