QueenSMTP Email Relay
Send application and bulk email from your own domain.
QueenSMTP is a managed SMTP relay for sending email from your own domain — application notifications, receipts and campaigns — with SPF and DKIM authentication, delivery logging and bounce handling. Built and operated by RNS STAR LLC.
Key features
- SMTP relay on ports 587 (STARTTLS), 465 (SSL/TLS) and 2525
- REST API for sending straight from your application
- Guided SPF and DKIM setup with per-domain verification
- Delivery logs, bounce handling and suppression lists
- Works with WordPress, Nodemailer, PHPMailer, Django and any SMTP client
FAQ
What is QueenSMTP?
QueenSMTP is a managed SMTP relay service. You point your website or application at it and your mail is delivered from your own domain, authenticated with SPF and DKIM so it reaches the inbox rather than the spam folder.
Do I need to change my application?
No. QueenSMTP speaks standard SMTP, so any client or framework that can send mail already works — you only change the host, port and credentials. A REST API is available if you prefer it.
Why not just send email from my own server?
Mail sent from an unprepared server is usually filtered as spam. A relay handles the authentication, IP reputation and bounce processing that determine whether your mail is actually delivered.