Start with one mailbox and a small list
Start with one email address you still control. Look for a few services you recognise, then work through the others as time allows. Keep the list on a device or storage service you trust. It can reveal where you shop, work, travel, and receive care.
Create these columns: service, account email, evidence found, last known use, dependency, and next action. Do not add passwords, recovery codes, or copies of identity documents. A simple note saying “receipt from a past purchase” is usually enough for this first pass.
Search for signs of a relationship
Look for phrases such as “welcome”, “verify your email”, “account created”, “free trial”, “order confirmation”, and “subscription”. Try the language you used when registering. Include archived mail, where old receipts and signup messages may still be stored.
In Gmail, these are starting points you can adapt:
{subject:welcome subject:"verify your email" subject:"account created"}
{subject:receipt subject:invoice subject:subscription} older_than:1y
from:example.com
The braces group alternatives; older_than:1y narrows the search to older messages. Replace example.com with a service you recognise. Gmail documents these operators in its help page below. Other providers use different search syntax, so begin with ordinary phrases if a query fails.
A promotional email could come from a mailing list, a forwarded message, or an impersonator. Record the clue without treating it as a confirmed account. Likewise, the absence of email does not establish that a company has no data about you.
Compare with saved logins
Review the account names in your password manager and the connected services settings of login providers you use. Work through the lists on your own device; you do not need to export passwords to make an inventory.
Look for dependencies before changing anything. An old email address may still receive recovery messages for an account you use. A login provider may be the only way into a photo library or a professional service. Add “check recovery” beside uncertain entries and leave them alone until you understand the connection.
If an entry belongs to an employer or another person, keep it outside your personal cleanup. Control of an inbox does not automatically give you permission to close every account mentioned in it.
Verify the service before signing in
Open the service through a known address or a trusted saved bookmark. Avoid signing in through an unexpected old message. Check the actual domain and consult the provider’s current help pages if the brand has changed.
You may find that an account is already closed, a company has shut down, or your purchase never created an account at all. Record what you can confirm. If you cannot verify whether an account still exists, leave it marked for review.
Give each entry a next action
Use four categories: keep, review, close, and ask about data. “Keep” is a valid outcome. For accounts you plan to close, first work through the checklist before deletion.
Stopping a newsletter, closing an account, and asking for personal data erasure solve different problems. Our comparison guide can help you choose the appropriate route.
Service:
Account email:
Evidence found:
Last known use:
Recovery, billing, or shared access to check:
Next action: keep / review / close / ask about data
Date checked:
Keep the inventory useful
Choose a next action for the entries you have checked. Revisit unresolved entries when you have more information. Keep any request and response evidence separately from your initial discovery notes.
Spectre can help identify likely services from supported mailbox signals. Review each result against your own records before deciding whether to keep the account or request erasure.