# SecureSMTP > Transactional email API and SMTP service. Send password resets, receipts, order updates and other app emails from your own domain (DKIM, SPF, DMARC), with an email log, webhooks for delivery events, and automatic bounce and complaint handling. Free plan: 5,000 emails a month. Also delivers WordPress and website form email. ## Product - https://securessmtp.com/docs — Documentation: quickstart, API, SMTP, webhooks, domains - https://securessmtp.com/docs/api/send-email — Send an email (REST API reference) - https://securessmtp.com/docs/guides/smtp — SMTP settings (smtp.securessmtp.com, ports 587 and 465) - https://securessmtp.com/docs/events — Webhook event catalogue - https://securessmtp.com/smtp — SMTP relay overview - https://securessmtp.com/forms — Hosted form builder - https://securessmtp.com/wordpress-smtp — WordPress SMTP plugin - https://securessmtp.com/pricing — Plans and free tier ## Guides - https://securessmtp.com/guides — Email deliverability troubleshooting - https://securessmtp.com/guides/fix-wordpress-wp-mail-going-to-spam — WordPress wp_mail fix - https://securessmtp.com/guides/fix-shopify-smtp — Shopify email: no SMTP setting; domain authentication and the API ## Help - https://securessmtp.com/help — Documentation index - https://securessmtp.com/support — Support tickets ## Legal - https://securessmtp.com/privacy - https://securessmtp.com/terms ## Sitemap - https://securessmtp.com/sitemap.xml