Header / MIME / Content
Review sender and routing signals, MIME structure, text and HTML composition, and campaign-risk indicators before the message reaches a list.
Campaign Preflights
Inspect deliverability risks before a campaign leaves your team
Run pre-send diagnostics against a campaign message and review privacy-redacted output for headers, MIME structure, content signals, links, authentication alignment, and spam risk before launch.
Coverage cards
Review the signals that usually slow a launch review
Campaign Preflights keeps deliverability review focused on derived findings and redacted summaries instead of asking every stakeholder to inspect the full message source.
Links / Auth
Surface link domains, redirect concerns, unsubscribe signals, and SPF, DKIM, DMARC, and alignment findings without exposing sensitive URL tokens.
Spam risk
Summarize scoring output and rule findings so launch reviews can prioritize practical fixes instead of guessing from mailbox results later.
Privacy boundary
Redacted summaries replace raw campaign content
The UI is designed for reviewable findings, not message disclosure. Raw body, full headers, attachments, and temporary input paths are not shown in the interface.
- Stored for review
- Redacted headers, metadata, derived findings, domains, hashes, and score summaries.
- Kept out of the UI
- Full message text, full header values, attachment contents, full URL query tokens, storage locations, and temporary input paths.
Workflow
From source review to redacted history
Run the same pre-send checklist every time: paste raw email or upload .eml, analyze, review findings, then keep redacted history for the next launch review.
Paste or upload
Paste a campaign source or upload one .eml file up to 2048 KB for pre-send diagnostics.
Analyze
HostRepute checks email headers, MIME structure, content signals, links, authentication alignment, and spam risk.
Review findings
See grouped issues, summaries, hashes, domains, and score details that help the team decide what to fix.
Keep redacted history
Save reviewable summaries for future comparisons while sensitive campaign material stays outside the UI.
Add pre-send diagnostics to your reputation workflow
Create a team, run campaign preflights before launches, and keep reviewable redacted summaries alongside the rest of your sender reputation work.