Monitoring 
The monitoring service allows external monitoring tools to monitor the system state. The monitoring configuration can be configured from the “Monitoring settings” page ()
- Remote monitoring enabled
The monitoring service is only enabled if “Remote monitoring enabled” is checked.
- IP filter
If set, only clients that connect from an approved IP address are allowed to access the monitoring service. The “IP filter” can be multiple IP addresses (comma separated) or an IP range in CIDR format. Example:
192.168.88.0/24, 10.0.0.16.- Password
The monitoring client should authenticate with the password.
The monitoring service should be accessible on URL:
https://Hostname/unprotected/monitor/Service?password=Password[&data=…]
- Hostname
The hostname (or IP address) to monitor.
- Service
The name of the service to check.
- Password
The monitoring password
- data
Optional data field.
The possible results from the service call:
- OK
Service is working correctly. Optionally a number will be added indicating the value from the service call.
- Warning
Service is in warning state. Optionally a number will be added indicating the value from the service call.
- Critical
Service is in critical state. Optionally a number will be added indicating the value from the service call.
- Unknown
Service is in unknown state (assume the service is in error state). Optionally a number will be added indicating the value from the service call.
Supported services
The following services are supported:
- Certificate request queue
The number of certificates in the certificate request queue.
- Service
cert-request-queue-size
Example: https://example.com/unprotected/monitor/cert-request-queue-size?password=secret
- Certificate store size
The number of certificates from the certificate store.
- Service
cert-store-size
Example: https://example.com/unprotected/monitor/cert-store-size?password=secret
- Corrupted mail count
The number of corrupt emails from the corrupt email store.
- Service
corrupted-mail-count
Example: https://example.com/unprotected/monitor/corrupted-mail-count?password=secret
- CRL store size
The number of CRLs from the CRL store.
- Service
crl-store-size
Example: https://example.com/unprotected/monitor/crl-store-size?password=secret
- MPA queue size
The number of emails from the MPA queues.
- Service
mpa-queue-size
- data
queue={[error | outgoing | spool | respool]}
Example: https://example.com/unprotected/monitor/mpa-queue-size?password=secret&data={queue=spool}
- MTA queue size
The number of emails from the MTA queues.
- Service
mta-queue-size
Example: https://example.com/unprotected/monitor/mta-queue-size?password=secret
- PGP keyring size
The number of PGP keys from the PGP key store.
- Service
pgp-keyring-size
Example: https://example.com/unprotected/monitor/pgp-keyring-size?password=secret
- Quarantine queue size
The number of emails from the quarantine queue.
- Service
quarantine-queue-size
Example: https://example.com/unprotected/monitor/quarantine-queue-size?password=secret
- SMS queue size
The number of emails from the SMS queue.
- Service
sms-queue-size
Example: https://example.com/unprotected/monitor/sms-queue-size?password=secret
- User store size
The number of users.
- Service
user-store-size
Example: https://example.com/unprotected/monitor/user-store-size?password=secret