Email Trust Center
Identify the services sending email for your domains
Build a clearer picture of your email sending environment. Review discovered sources, investigate unfamiliar activity and use the findings to support email authentication decisions.
Why it matters
Understand a source before deciding whether to trust it
A newly observed sender needs context. Use the available evidence to establish its business purpose, ownership and authentication status before making a change. Knowing your legitimate senders is what makes a move to p=reject safer.
- What business process uses this sender?
- Who owns the account or contract?
- Is it aligned with SPF and DKIM?
- Should it be authorised, fixed or removed?
What it does
Discovery, classification and risk
How senders are found, classified, scored and flagged for review.
Sender discovery
Identifies internal Microsoft 365, Exchange and Google Workspace senders and common external SaaS platforms seen sending as your domain.
- Internal and external senders
- Ongoing, not a one-off scan
- Built from authentication and DNS data
- Visibility depends on the data available
The inventory
Known, unknown, unauthorised
Discovered senders sorted and risk-scored, so the one that should not be there stands out. Example counts below.
M365, Exchange, Google Workspace — your own platforms.
Authorised tools like Salesforce, HubSpot and Mailchimp.
A sender you never approved, flagged for investigation.
Review the services sending as you
Explore the platform with a walkthrough focused on your organisation's priorities, users and email environment.