SSL Certificates

info If you manually store our SSL or Intermediate SSL certificates in a trust store, any future certificate changes will be communicated in advance via a scheduled maintenance post on our status page. We recommend subscribing to our status page to ensure you receive these notifications.

Intermediate CA Certificate

If at all possible we recommend you save the Intermediate CA certificate in your trust store rather than the certificate for the endpoint itself.

The CURRENT Intermediate CA certificate (made active on 2026-02-27) is as follows (in PEM format):

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Additional certificate info:

Serial Number: 0c:f5:bd:06:2b:56:02:f4:7a:b8:50:2c:23:cc:f0:66
Validity:
- Not Before: Mar 30 00:00:00 2021 GMT
- Not After: Mar 29 23:59:59 2031 GMT

Leaf SSL Certificate

warning Pinning against the leaf certificate is not recommended. Leaf certificates can change during renewal, reissue, or service migration. Prefer the Intermediate CA certificate above where your application requires a custom trust store.

The CURRENT SSL certificate for messaging.gateway.one.nz (made active on 2026-07-22) is as follows (in PEM format):

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Additional certificate info:

Serial Number: 01EF879B3834DFDCAF07436653BE8403
Validity:
- Not Before: May 27 00:00:00 2026 GMT
- Not After: Dec 11 23:59:59 2026 GMT