Mail

Exim Monitoring

Monitor Exim mail queue depth, delivery rates, bounce statistics, and connection metrics in real time with zero configuration.

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Why monitor Exim?

Exim is a highly configurable mail transfer agent used on millions of servers. Monitoring Exim is critical to track queue health, delivery performance, and detect issues before they impact email communication.

Auto-discovery via Xitogent

Mail queue depth monitoring

Delivery and bounce rate tracking

Connection and rejection metrics

Frozen message detection

Log-based analytics

1-minute collection intervals

Metrics

What we monitor

Queue Depth

Total messages in the mail queue.

Delivery Rate

Messages delivered per minute.

Bounce Rate

Hard and soft bounce counts.

Frozen Messages

Messages stuck in frozen state.

Connections

Active SMTP connections.

Rejections

Rejected connection attempts.

Triggers & Alerts

Configurable alert triggers

Set up custom triggers in your dashboard to get notified the moment Exim metrics cross your defined thresholds.

Exim monitoring trigger configuration dashboard

Queue Depth

critical

Fires when queue grows beyond threshold.

Frozen Messages

warning

Alerts on frozen message accumulation.

Bounce Rate

warning

Triggers on high bounce rates.

Delivery Failures

critical

Fires on delivery failure spikes.

Importance of Exim Monitoring

Exim is the default MTA on many hosting platforms. Queue buildup and delivery failures can cascade into reputation damage.

Detect queue buildup immediately
Track frozen messages
Monitor delivery rates
Prevent reputation damage

Why Choose Xitoring

Zero-config Exim monitoring.

One-command install
Global monitoring nodes
Unified dashboard
Multi-channel alerts

Before you start

Prerequisites for Exim

Make sure you've got these in place — most installs are a 60-second job once they are.

Exim 4 MTA installed and running
Read access to /var/log/exim4 (or your configured logdir) for Xitogent
exim and exiqgrep binaries on the system PATH for queue inspection

Setup Guide

Get started in minutes

Install Xitogent on your mail server

Install the lightweight Xitogent monitoring agent on the host running Exim.

curl -s https://xitoring.com/install.sh | sudo bash -s -- --key=YOUR_API_KEY

Grant log and queue access

Exim writes mail flow events to `/var/log/exim4/mainlog` (Debian/Ubuntu) or `/var/log/exim/main.log` (RHEL). Ensure the agent user can read these files and that the `exim` binary is on PATH for queue inspection.

sudo xitogent integrate

Enable the Exim integration

Use the Xitoring dashboard or CLI to enable the Exim integration. Xitogent auto-detects your Exim install and begins parsing queue and delivery metrics.

Configure alert thresholds (optional)

Set custom thresholds for Queue Depth, Frozen Messages, or Bounce Rate to catch delivery problems before downstream senders notice.

Verify it's working

Run this command on the server to confirm Xitogent picked up the integration. Fresh metrics will start streaming to your dashboard within ~30 seconds.

sudo xitogent status

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Considering alternatives?

See how Xitoring stacks up against the alternatives for Exim monitoring — flat pricing, deeper integrations, and one agent that covers your whole stack.