---
title: "Block - Main Group - smtp · RUAL Documentation"
description: "2 RUAL blueprint blocks in the smtp main group. Open a group to find a block and read its pins, canvas example and version history. In the RUAL block reference."
canonical: https://docs.rual.nl/block-types/smtp
language: en
---

[Cluster](https://docs.rual.nl/cluster)

[Blocks](https://docs.rual.nl/block-types)

[Interfaces](https://docs.rual.nl/interfaces)

[Blueprints](https://docs.rual.nl/blueprints)

[Blueprint Language](https://docs.rual.nl/engine)

[Tutorials](https://docs.rual.nl/tutorials)

[Home automation](https://docs.rual.nl/home-automation)

[Examples](https://docs.rual.nl/examples)

[Reference](https://docs.rual.nl/reference)

[Architecture](https://docs.rual.nl/architecture)

[Troubleshooting](https://docs.rual.nl/troubleshooting)

Other

# Groups within smtp

List of all the groups within the `smtp` main group, these groups help finding blocks within the blueprints. If you're running an older core version, there may be groups listed here that are not available to you (yet).

- [smtp](https://docs.rual.nl/block-types/smtp?group=smtp): Contains `2` blocks, click to view.

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