Network & Email · page 5

Test connectivity to a configured local gateway.

Separate DNS resolution problems from general connectivity issues.

Assign subnets and VLAN IDs to network segments.

Organize devices into logical network security zones.

Estimate useful throughput after protocol overhead.

Test whether an endpoint supports a WebSocket connection.

Inspect the greeting returned by a reachable SMTP service.

Check SPF record syntax and common policy issues.

Estimate DNS lookup usage in an SPF record.

Retrieve a DKIM public key record for a supplied selector and domain.

Validate the basic format of a supplied DKIM DNS record.

Inspect a domain's DMARC record and policy.

Build a DMARC record template with selected reporting and enforcement settings.

Inspect available BIMI DNS configuration and record syntax.

Inspect supplied email headers for routing and authentication results.

Explain common SMTP, IMAP, and POP3 ports and encryption options.

Map requested domains and network dependencies from supplied data.

Remove selected sensitive headers and values from an exported HAR file.

Interpret cache-related headers from a supplied response.

Summarize supplied network traffic measurements by interface and time.

Estimate link capacity requirements from device and application demand.

Estimate bandwidth demand from user count and per-user usage assumptions.

Create structured incident reports from connectivity diagnostics.

Generates random IP and prefix problems then reveals network, broadcast, and host-range answers.