Network Infrastructure
Alerts your network gear can actually deliver
Link-down, failover and UPS-on-battery notifications relayed reliably from switches, firewalls and power equipment — even when the mailbox provider changes.
The problem
What goes wrong with network infrastructure email
Switches, routers, firewalls and UPS units email the network team about link failures, failover events, configuration changes and power loss. These alerts are how you learn about an outage before your users do — and ironically, a network fault is exactly when a device’s own fragile email path is most likely to let you down.
A UPS reporting “on battery” is racing a dwindling runtime; if that email doesn’t go out in time, the first sign of trouble is equipment shutting down.
Why conventional SMTP setups fail
The internet moved on — the firmware didn’t
Network appliances keep their firmware stable for reliability, which means their SMTP clients age in place. Devices relying on basic authentication stop alerting once a provider retires it, and nobody notices until the next incident.
Management VLANs are often locked down and block outbound mail ports, while older appliances negotiate TLS versions modern servers reject. With no delivery log on the device, a link-down or UPS alert can fail precisely during the outage you needed to hear about.
How DeviceSMTP solves it
One gateway purpose-built for network infrastructure
A stable relay endpoint
A single, dependable destination for every switch, firewall and UPS, reachable even when your own services are degraded.
TLS & SSL to match the firmware
Match each appliance with STARTTLS on 587/2525 or implicit SSL on 465 for an encrypted alert channel.
Per-device credentials & labels
Label logins like “UPS — Server room” and revoke any one device without touching the rest of the estate.
Delivery logs & bounce monitoring
Keep an independent record that each infrastructure alert was delivered, and catch a bounced NOC mailbox early.
Example notifications
The kind of mail these devices send
- Interface link-down and link-up events
- Failover, HA and routing-change alerts
- Configuration-change and login notifications
- UPS on-battery, low-battery and shutdown warnings
- Temperature, fan and PSU hardware alarms
- Scheduled uptime and capacity reports
Example SMTP settings
Typical configuration for a network infrastructure device
Illustrative values to show the shape of a DeviceSMTP configuration. Enter the equivalents into your device’s email settings screen.
| SMTP host | smtp.devicesmtp.com (illustrative) |
| Ports | 587 (STARTTLS) · 465 (SSL/TLS) · 2525 (STARTTLS) |
| Encryption | STARTTLS on 587 / 2525, implicit SSL on 465 |
| Username | ups-server-room (per-device user) |
| Password | (per-device password) |
| From | noc@yourcompany.com (verified sender) |
Related use cases
Other hardware DeviceSMTP supports
Hear about the outage before your users do.
Relay link-down, failover and UPS alerts from every switch, firewall and power unit through one reliable gateway.