URL Inspection: https://mail.sestrasolutions.com

The server's SSL certificate could not be verified. The inspection was completed using insecure mode. Data may be less reliable.

Reason:

Expired Certificate - the server's certificate has expired

Open Cached · just now

DOWN

HTTP Status

403

Ping

N/A

Technologies

Email Provider	Microsoft 365 Microsoft 365 (formerly Office 365) provides business email hosting using Exchange Online.
Description: Microsoft 365 (formerly Office 365) provides business email hosting using Exchange Online. It offers custom domain email addresses, Outlook integration, large mailbox storage, and advanced security features along with the full Microsoft Office suite. View full details
Evidence: • DNS Record MX: sestrasolutions-com.mail.protection.outlook.com (root domain: sestrasolutions.com) • DNS Record TXT: v=spf1 include:spf.protection.outlook.com -all (root domain: sestrasolutions.com)

Registrar	Network Solutions Network Solutions is one of the original domain registrars, having registered some of the first .com domains.
Description: Network Solutions is one of the original domain registrars, having registered some of the first .com domains. It provides domain registration, web hosting, and website builder services, though it's now owned by Web.com. View full details
Evidence: • WHOIS Registrar: Domain.com - Network Solutions, LLC

Certificate Authority	Let's Encrypt Let's Encrypt is a free, automated, and open certificate authority run by the Internet Security Research Group (ISRG).
Description: Let's Encrypt is a free, automated, and open certificate authority run by the Internet Security Research Group (ISRG). It provides free SSL/TLS certificates to enable encrypted HTTPS on websites, making web security accessible to everyone. It's one of the most widely used certificate authorities globally. View full details
Evidence: • SSL Certificate Issuer: C=US, O=Let's Encrypt, CN=E5