Documentation Your domains
How investigations work
An investigation tracks one authentication question through its fix and its verification. For example: an unfamiliar service is sending as your domain, or a service you use is failing DKIM.
What you see
Each investigation says what is known, what is still uncertain, and what it is waiting for: your confirmation, an approval, a DNS change you publish, or new reports. Pending investigations are open; resolved ones keep their outcome and history.
What you do
Usually one thing: answer the question it asks, such as whether you use a service, then review the suggested fix. Any DNS change is reviewed and approved separately.
On each plan
Every plan shows the investigations MailGlo opens for you, such as a report conflict, a DNS problem, an SPF flattening failure or a new sender, and you resolve or dismiss them on any plan. Alerts reach you on every plan.
Paid plans add investigation work: opening an investigation yourself, assigning it, asking a client or teammate for information, evidence packets and automated investigation runs. The page shows the plan's choices where these start.
Where they appear
To do lists everything waiting on a person, most urgent first, investigations included; All investigations there lists every investigation for all your domains. In the API they are called cases.
Documentation version docs-2026-10-12.
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