SMTP Servers
Introduction
Lucy supports sending campaign emails through an external SMTP relay—either via credentials or OAuth2 (Azure). Using a familiar company domain improves email deliverability and trust.
Setup
Select "+ Add Server"

Next, you will define the SMTP Mail Server parameters:
Name
Friendly identifier for selection in Lucy
Client
Optional—restricts server to a specific client
Host & Port
Example: smtp.office365.com
, port 587
Encryption
STARTTLS
(recommended), or SSL/TLS
on port 465
Authentication
Choose between Password or OAuth2 (Azure)
Once completed, click Save to commit your SMTP server settings.
If these settings are ever updated, click Authorize to reconnect Lucy to the SMTP server.
Test Connection
To test your SMTP server settings, simply enter the sender email address (which must be the exact email address associated with your SMTP server) and a recipient email address you have access to. Then, click or select "Test" to initiate the testing process.

The response is logged just below the test input:

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