It can be anything! An apex, subdomain, or even a URL.

Results for*.mail.activeon.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2024-09-17T12:56:07.602	2024-09-17T11:57:37	2024-12-16T11:57:36	ex-fx.net	*.mail.activeon.com	C=US, O=Let's Encrypt, CN=R10
2024-09-17T12:56:07.602	2024-09-17T11:57:37	2024-12-16T11:57:36	ex-fx.net	*.mail.activeon.com	C=US, O=Let's Encrypt, CN=R10
2024-09-17T12:56:07.352	2024-09-17T11:57:37	2024-12-16T11:57:36	ex-fx.net	*.mail.activeon.com	C=US, O=Let's Encrypt, CN=R10
2024-09-17T12:56:07.352	2024-09-17T11:57:37	2024-12-16T11:57:36	ex-fx.net	*.mail.activeon.com	C=US, O=Let's Encrypt, CN=R10
2024-09-02T10:45:19.736	2024-09-02T09:46:48	2024-12-01T09:46:47	divino.net	*.mail.activeon.com	C=US, O=Let's Encrypt, CN=R10
2024-09-02T10:45:19.736	2024-09-02T09:46:48	2024-12-01T09:46:47	divino.net	*.mail.activeon.com	C=US, O=Let's Encrypt, CN=R10
2024-09-02T10:45:18.921	2024-09-02T09:46:48	2024-12-01T09:46:47	divino.net	*.mail.activeon.com	C=US, O=Let's Encrypt, CN=R10
2024-09-02T10:45:18.921	2024-09-02T09:46:48	2024-12-01T09:46:47	divino.net	*.mail.activeon.com	C=US, O=Let's Encrypt, CN=R10