🐛 [Bug]: Sending test email will not work

[pawisoon]

Bug Description

I added my credentials to send email with my gmail account and app password.
Unfortunately while trying to sent test email I get an error

How to Reproduce

Steps to reproduce the behavior:

1. Go to settings -> Mail settings
2. Fill Gmail smtp details and credentials
3. Save
4. Try to send test email.
5. See error

Expected Behavior

We should get a test email send from litecart.

litecart Version

0.1.12 docker image

Code Snippet (optional)

2025-02-01 00:50:21 {"level":"error","caller":"/home/runner/work/litecart/litecart/internal/handlers/private/setting.go:193","error":"Mail Error on dialing with encryption type None: dial tcp :0: connect: connection refused","time":1738367421}
2025-02-01 00:50:21 {"level":"error","ip":"172.17.0.1","latency":"2.372292ms","status":500,"method":"GET","url":"/api/_/test/letter/smtp","time":1738367421,"message":"Server error"}

Checklist:

• I agree to follow litecart's Code of Conduct.
• I have checked for existing issues that describe my problem prior to opening this one.
• I understand that improperly formatted bug reports may be closed without explanation.