EAI TOOLS
Mail server connection check
Check mail server connectivity before delivery.
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What does this tool do?
This tool checks public mail routing, SMTP connectivity and whether an advertised STARTTLS connection presents a certificate valid for the mail server.
Why is it useful?
It can help isolate configuration and connectivity problems when used with server logs and provider guidance.
How to use it
- Identify the affected sender, recipient and time of the issue.
- Enter an email address for a domain you are authorized to check.
- Compare the result with mail server logs and the relevant provider’s guidance.
What the result can and cannot tell you
The connection check sends no message and cannot establish that a mailbox exists. When an authorized test message is enabled and its code is confirmed, it confirms receipt of that message only; it does not guarantee future delivery.