> ## Documentation Index
> Fetch the complete documentation index at: https://docs.alumio.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Email servers

Email servers are used to configure reusable email server connections for sending emails within Alumio. Email
servers can be used within the [Send email](/references/transformer/email-transformer) transformer.

The following email servers are available:

| Name | Description |
| - | - |
| [SMTP](/references/email-server/smtp) | Send emails using SMTP |
| [SendGrid](/references/email-server/sendgrid) | Send emails using SendGrid |


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