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

Results for*.internal.apse2.mail-svcs.atmailcloud.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2025-06-03T03:52:23.003	2025-06-03T00:00:00	2026-07-02T23:59:59	*.mail-svcs.atmailcloud.com	*.internal.apse2.mail-svcs.atmailcloud.com	C=US, O=Amazon, CN=Amazon RSA 2048 M04
2025-06-03T03:52:23.003	2025-06-03T00:00:00	2026-07-02T23:59:59	*.mail-svcs.atmailcloud.com	*.internal.apse2.mail-svcs.atmailcloud.com	C=US, O=Amazon, CN=Amazon RSA 2048 M04
2025-05-21T09:11:13.165	2025-05-21T00:00:00	2026-06-19T23:59:59	*.internal.apse2.mail-svcs.atmailcloud.com	*.internal.apse2.mail-svcs.atmailcloud.com	C=US, O=Amazon, CN=Amazon RSA 2048 M02
2025-05-21T09:11:13.165	2025-05-21T00:00:00	2026-06-19T23:59:59	*.internal.apse2.mail-svcs.atmailcloud.com	*.internal.apse2.mail-svcs.atmailcloud.com	C=US, O=Amazon, CN=Amazon RSA 2048 M02