How it works
How DeviceSMTP works, end to end
DeviceSMTP is a specialist SMTP gateway for physical devices. Point your hardware at it using standard SMTP settings — no code, no firmware changes — and get reliable email delivery for every device.
The four steps
From “send failed” to delivered in four steps
DeviceSMTP sits between your hardware and the recipient’s mail server. You keep standard SMTP; we handle reliable delivery.
Create your DeviceSMTP account
Sign up and get your gateway hostname together with a set of SMTP credentials. There is nothing to install and no code to write.
Configure your device
Open your device’s email or notification settings and enter the SMTP hostname, port, encryption and credentials — the same fields your hardware already has.
Your device sends email
Your printer, camera or controller connects over TLS and sends mail exactly as before. DeviceSMTP relays each message reliably, with automatic retries.
Monitor delivery & activity
Watch every message, delivery and bounce in your dashboard, with a timestamp and status for each one, so you can prove a notification was sent.
On the device
What you enter on the device
These are the generic SMTP fields every mail-capable device exposes. Fill them in once and your hardware is ready to send.
| SMTP server / host | Your DeviceSMTP hostname, e.g. smtp.devicesmtp.com (illustrative) |
| Port | 587 (STARTTLS), 465 (SSL/TLS) or 2525 |
| Encryption | STARTTLS or SSL/TLS — whichever your hardware supports |
| Username | Your per-device SMTP user |
| Password | The per-device password paired with that user |
| From address | Your verified sender address |
$ device connects to smtp.devicesmtp.com:587 220 DeviceSMTP ESMTP ready EHLO printer-office-1 250 STARTTLS supported STARTTLS 220 TLS 1.3 negotiated ✓ AUTH printer-office-1 ******** 235 authenticated MAIL FROM <alerts@yourco.com> RCPT TO <it@yourco.com> DATA Subject: Scan complete 250 Message accepted — queued for delivery
In practice
Where the settings live on real hardware
The same four fields apply across your fleet. Here is where to find them — and what each device sends once it is connected.
Network Printer
Most multifunction printers have a “Scan to Email” or SMTP screen in their admin console. Enter the gateway details there, and scanned documents, toner-low alerts and usage reports reach the right inbox every time.
See the network printer guideSurveillance Camera
IP cameras and NVRs keep SMTP settings under their event or notification menu. Point them at DeviceSMTP and motion alerts, tamper warnings and snapshot emails get delivered the moment they matter.
See the surveillance camera guideIndustrial / PLC Equipment
PLCs, RTUs and SCADA gateways send email from their alarm or messaging module. With the gateway configured, fault alarms, threshold breaches and shift reports leave the plant floor reliably.
See the industrial / plc equipment guideThen: monitor everything
Confirm every message reached its destination
Once your devices are sending, DeviceSMTP records what happens to each message so delivery is something you can verify, not assume.
Email activity log
A searchable, per-device timeline of every message and its delivery status.
Bounce monitoring
See rejected and bounced mail right away, with the reason the receiving server gave.
Usage & statistics
Track volume and delivery rate per device and across your whole fleet.
# recent messages printer-office-1 delivered it@yourco.com camera-entrance delivered security@yourco.com plc-line-2 delivered ops@yourco.com ups-server-room bounced mailbox full --- sent 30d 12,480 delivered 99.2%
Connect your first device in minutes.
Create your DeviceSMTP account, enter the SMTP settings your hardware already has, and watch reliable delivery in your dashboard.