Outbound SMTP Monitoring. No silent delivery gaps.
Lock down outbound mail across your entire client portfolio. Uptimeify validates the reachability and handshake of your SMTP servers on ports 25, 587 and 465, and flags the problem before your client notices an email that never arrived.
Made and Hosted in the
European Union
GDPR-Compliant Hosting
in Germany
GEO-Redundant Replica
across the EU
Prove Reachability. Before the first mail stalls.
A stalled mail queue gives no warning. You only notice it when the order confirmation, the password reset, or the invoice never reaches the end user. Uptimeify actively connects to your mail gateway and checks whether it answers, instead of waiting for the first complaint. Outbound mail goes from blind spot to a monitored service across your portfolio.
- Active handshake check: so you catch a stalled mail server while not a single client email is lost yet.
- Confirmed outages, not gut feeling: so you report a real incident to your client, not every flicker on the network.
- One mail backbone across every client: so you track SMTP availability in the same dashboard as the rest of your portfolio.
A real TCP connection is opened to the configured SMTP port.
A hung queue or stalled gateway fails even while the port stays open.
The response wait time is enforced per monitor.
Ports and TLS Layers. That match your setup.
SMTP isn't one thing: the classic relay port 25, submission port 587 with STARTTLS, and implicit-TLS port 465 all behave differently. Uptimeify monitors the exact combination you run and verifies that encryption negotiates cleanly, not just that the port is open.
- Port selection for your setup: so you monitor standard relay (25) and submission ports (587, 465) the way your infrastructure actually uses them.
- TLS negotiation in view: so you catch expired or misconfigured encryption before it starts costing deliveries.
- Maintenance mode without data gaps: so planned server updates trigger no false alarms while your telemetry stays intact.
STARTTLS or SSL/TLS negotiation is verified, not just the open socket.
Maintenance mode suppresses alerts while still recording telemetry.
Each monitor pins its own port and encryption expectation.
Reachability. From exactly the regions you operate in.
A mail server can be reachable from one country and blocked at a firewall in the next. Uptimeify checks reachability from the European monitoring network and narrows it to the regions that matter to you and your clients, hosted in Frankfurt, on European nodes, without US sub-processors.
- Regional check control: so you scope monitoring to the countries where your infrastructure or your clients actually operate.
- Firewall and whitelist proof: so you can show that your security policies admit the monitoring nodes correctly.
- Failures with a clear cause: so you see at a glance whether a check failed on timeout, refused connection, or TLS handshake.
Checks run from EU nodes; targeting matches your IP allowlists.
Confirms our nodes are permitted by your security policies.
Failures are cross-checked across nodes before an incident opens.
Success Kit
We don't just monitor. We help you sell.
Every Uptimeify subscription includes access to our Success Kit, a collection of battle-tested resources to turn your monitoring into a profit center.
Service Level Agreement templates to define professional boundaries with your clients.
Find the sweet spot for your care plans. Calculate margins based on check frequency and support hours.
Powerpoint Templates that explain 24/7 monitoring to non-technical clients. Close more retainers.
Use automated reports to proactively communicate value, so clients never ask what they're paying for.
Ready to turn monitoring into a profit center?
Claim your Success Kit and start scaling today.
Frequently Asked Questions
Uptimeify opens a real connection to your SMTP server and checks whether it answers with the service-ready greeting within your timeout, and, on encrypted connections, whether the TLS handshake completes cleanly. So you know your mail gateway is reachable and responsive, instead of just hoping the next client email goes out.
The standard relay port 25 plus submission ports 587 and 465. You pick the port per monitor to match your setup, so you monitor the exact path your clients send mail through, not a theoretical one.
Yes. You decide per monitor whether the connection is checked with explicit TLS (STARTTLS) or implicit TLS, and the negotiation feeds into the check result. So a misconfigured or failed encryption shows up before it hits delivery, as its own error class, not a blanket outage.
Before any alert goes out, several independent EU nodes re-check the failure. Only consensus flips the status to "down." That catches network flicker and single-node hiccups, so you never send a client an incident notice for a problem that's already gone.
Yes. Uptimeify is hosted in Frankfurt and polls from European nodes, without US sub-processors. That minimizes third-country transfer risk and takes a whole discussion off the table in B2B and public-sector pitches. You argue from the location, not from a promise.
Yes. Planned server updates go in as a maintenance window. Inside that window alerting pauses, monitoring keeps running in the background, and the status history shows scheduled maintenance instead of a phantom outage, so your client never sees a false down.
Ready to lock down your outbound mail flow?
Put SMTP availability under watch across your whole portfolio, hosted in Frankfurt, polled from the EU, flagged before your client notices a thing.