Gmail signup troubleshooting
Check copied spelling before asking the visitor to try another address.
Gmail address diagnostics
Gmail email checker
Check a Gmail address for valid formatting and mailbox signals without sending a message.
Google may deliberately limit SMTP mailbox verification. An “unknown” mailbox signal does not mean the Gmail address is invalid.
—verification score
Can you check if a Gmail address exists without emailing it?
You can validate the address format and inspect mail-server responses, but Gmail does not promise to reveal whether a specific inbox exists. Google can accept, defer, block, or obscure verification attempts to protect users and prevent abuse. EmailValidly therefore shows uncertain mailbox results as unknown instead of inventing certainty.
What this Gmail checker can confirm
It can confirm whether the address has valid syntax and whether the domain is configured for email. When Gmail’s receiving servers expose a useful SMTP response, that signal is reported separately. For a broader check on any provider, use the free email verifier.
Put the result to work
Check Gmail addresses without treating aliases as errors
This form accepts gmail.com and googlemail.com addresses and requests mailbox evidence when available. Google can conceal recipient information, so an unknown SMTP result is not proof that the account is missing.
Use a consumer Gmail address
For Google Workspace on a company domain, use the general checker.
Preserve the submitted spelling
Keep dots and plus tags in your stored contact unless you have a separate, justified matching rule.
Confirm ownership separately
For signup or recovery, send your own confirmation link through your application.
Worked examples
What the evidence tells you
Illustrative scenarios, not live results for the addresses or records shown. Open a scenario to see the next action.
01alex.lee@gmail.com and alexlee@gmail.com
Dots do not create separate consumer Gmail destinations
Google documents that dots do not matter in consumer Gmail usernames. This rule is not universal across custom domains.
Next action Do not apply the rule to every provider.
02alex+orders@gmail.com
Tagged address
A plus tag can be used to organise incoming mail.
Next action Keep the address supplied by the recipient.
03alex@company.example
Custom domain
Even if hosted by Google, it is outside this consumer Gmail form.
Next action Use the general email checker.
Use it with a purpose
Where this tool fits
List review
Avoid deleting tagged addresses simply because they differ from the base spelling.
Before you decide
Questions about this tool
Can it prove a Google account exists?
No. A provider may hide mailbox details, and a probe is not an ownership test.
Does it accept Google Workspace domains?
Use the general checker for custom domains.
Do dots work the same way on work or school domains?
Do not assume that. Google distinguishes consumer Gmail from organisational addresses in its dot-address guidance.
Technical reference: Google: dots in Gmail addresses.
