Analyze email configuration
What the tool checks
The analysis starts with MX records. When a hostname strongly matches a known service, InfoSIP reports a likely provider. That identification remains indicative because security gateways and hybrid routing can hide the final mailbox platform.
The tool then reviews SPF, DMARC and the DKIM selectors you provide. It also checks MTA-STS, TLS-RPT, BIMI and common Autodiscover/Autoconfig records. Each result includes an importance level, a definition and a domain-specific configuration example.
Recommendations instead of a fake score
DNS alone cannot guarantee inbox placement. Reputation, message content, sending volume, recipient behavior and real-message alignment also matter. InfoSIP therefore reports priorities and explanations rather than inventing a single deliverability score.
Likely providers
MX pattern detection recognizes several common infrastructures, including Microsoft 365, Google Workspace, Infomaniak, Proton Mail, Zoho Mail, Fastmail, OVHcloud, IONOS and Gandi. When the pattern is unclear, the result stays “Not identified”.
What this cannot guarantee
This is a public DNS configuration review, not an email-sending test. It cannot measure sender reputation, inspect a real message, discover every possible DKIM selector or guarantee delivery to the inbox.
Raw view: use the email DNS diagnostic to see records without the recommendation layer.