> For the complete documentation index, see [llms.txt](https://help.solar-archive.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.solar-archive.com/docs/admin-ui/settings/smtp-settings.md).

# SMTP Settings

Here SUs can configure and test email delivery settings for the system. These settings include connection details, authentication credentials, and sender information.

### Connection Configuration

This section allows users to configure how the system connects to the SMTP server for sending emails. It includes the following fields:

· Host: The address of the SMTP server used for sending emails.\
· Port: The port number used by the SMTP server (e.g., 25, 465, 587).\
· SMTP Security (Encryption): The type of encryption used for securing connections (SSL/TLS).\
· Authentication Type: Defines the authentication mechanism used (e.g., LOGIN, Plain, CRAM-MD5).\
· Timeout: The maximum time (in seconds) the system waits for a response from the SMTP server.\
· Persist connections to the SMTP server: If enabled, the system will maintain persistent connections to the SMTP server for efficiency.

### SMTP Authentication

Users must provide authentication credentials to enable the system to send emails via the configured SMTP server. The authentication details include:

· Username: The SMTP account username used for authentication.\
· Password: The SMTP account password used for authentication (hidden for security reasons).

### Sender Configuration

This section allows users to configure the default sender information for outbound emails:

· From Address: The email address that appears as the sender of outgoing emails.\
· Reply-To Address: The email address that recipients should use for replies.


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