Fix: Unauthenticated SMTP Support

SMTP no longer requires user/password credentials. Only the host is needed, and the from address uses the SMTP_FROM parameter.

SMTP works without USER/PASS credentials
From address uses SMTP_FROM parameter

Fixed SMTP configuration to support unauthenticated mail servers. Only SMTP_HOST is now required — SMTP_USER and SMTP_PASS are optional. The sender address is configured via SMTP_FROM.

All releases