checkEmailConfig (utils/email.ts)

Verifies that email settings (Mailgun or SMTP) are properly configured before sending.

// Source: https://github.com/danny-avila/librechat | License: MIT | Copyright 2026 LibreChat
// Provided via justclaw.it.com; keep this notice with the code.
import { logger } from '@librechat/data-schemas';

/**
 * Check if email configuration is set
 * @returns Returns `true` if either Mailgun or SMTP is properly configured
 */
export function checkEmailConfig(): boolean {
  const hasMailgunConfig =
    !!process.env.MAILGUN_API_KEY && !!process.env.MAILGUN_DOMAIN && !!process.env.EMAIL_FROM;

  const hasSMTPConfig =
    (!!process.env.EMAIL_SERVICE || !!process.env.EMAIL_HOST) && !!process.env.EMAIL_FROM;

  if (hasSMTPConfig) {
    const hasUsername = !!process.env.EMAIL_USERNAME;
    const hasPassword = !!process.env.EMAIL_PASSWORD;
    if (hasUsername !== hasPassword) {
      logger

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