Documentation

Send emails with SMTP

Learn how to use Reloop as an SMTP relay for your application.

Use this pre-built prompt to get started faster.

Prerequisites

To get the most out of this guide, you'll need to:

SMTP Configuration

You can use these settings in any application that supports SMTP:

SettingValue
Serversmtp.reloop.sh
Port587 (TLS) or 465 (SSL)
Usernamereloop
PasswordYour Reloop API Key (re_123...)
EncryptionSTARTTLS or SSL/TLS

Authentication

Reloop uses your API key as the password for SMTP authentication. Ensure you keep your API key secure.

We recommend using Port 587 with STARTTLS for most applications.

Read the Docs

Integrations

Explore specific guides for popular frameworks and platforms.