Quarivo Form Shield

Quarivo Form Shield adds an independent, local inbox for Contact Form 7. It stores a reviewable record before Contact Form 7 attempts email, so a local mail error does not make the original inquiry disappear.

The important distinction

WordPress can report that its mail method processed a request without an error. That is not a mailbox delivery receipt. Quarivo Form Shield therefore shows Mail handoff accepted — delivery not verified separately from a mail error, skipped spam mail, and mail that was not attempted.

Conservative spam handling

• Balanced mode is the default and treats every language equally.
• Japanese-site enhanced and Strict Japanese modes are explicit administrator choices.
• One URL, one foreign-language message, missing JavaScript, or a public email address does not cause automatic quarantine by itself.
• Compound signals include URL/link structure, a honeypot, browser-observed timing, local rate evidence, repeated promotion structure, executable markup, and bounded local moderator feedback.
• Only high-confidence Quarivo results are quietly quarantined. Lower evidence stays visible as Needs review and ordinary mail remains available.
• Akismet, reCAPTCHA, Cloudflare Turnstile, Flamingo, and other Contact Form 7 decisions are not disabled or overwritten. An existing spam result remains spam.
• No message is automatically deleted.

Local inbox

The responsive WordPress administration inbox provides:

• All, unread, read, important, normal, needs review, auto-quarantined, spam, mail-error, and invalid counts.
• Search, form filtering, 25/50/100-row pagination, and bounded per-page bulk actions.
• Full submitted fields, source form/page, sender information, score/reasons, Contact Form 7 status, and mail-processing status.
• Reversible normal/review/spam decisions and local learning from explicit moderator choices.
• A deliberate plain-text resend to the validated site administrator address. Submitted data is never reused as an email header and attachments are not automatically resent.
• Private JSON and formula-safe CSV export.

Failure-safe storage

The first database insert occurs before validation, spam handling, upload processing, and email. Later Contact Form 7 hooks enrich the same unique row, preventing duplicate records from one request.

If a database write fails, Quarivo retries before mail, writes an authenticated-encrypted local recovery record, shows an administrator health warning, and processes a small recovery batch when the database becomes available. The original mail path is left available. A simultaneous database, private-filesystem, and mail outage cannot be made loss-free by an in-process plugin; Quarivo reports that failure instead of silently claiming success.

Protected attachments

Validated Contact Form 7 temporary uploads are copied before Contact Form 7 removes them. Quarivo enforces a 25 MB default storage limit and stores each file as AES-256-GCM authenticated ciphertext under a random opaque name in a protected plugin directory inside the site’s configured WordPress uploads directory. It does not create a public attachment URL. A capability and nonce checked administrator request verifies and decrypts a download. If authenticated encryption or private storage is unavailable, Quarivo does not retain the attachment and displays a storage warning.

Privacy and retention

• No API key, CAPTCHA, remote request, telemetry, external font, or third-party asset is required by Quarivo Form Shield.
• Password, token, API-key, PIN, CVV, and card-number-like field names are redacted automatically. Administrators can add exact excluded field names.
• Contact Form 7 do-not-store and storage-consent metadata is respected: operational metadata may remain, but submitted field values are not copied when the form prohibits storage.
• Visible IP storage defaults to anonymized. Full IP display is opt-in; a keyed local hash supports rate checks.
• Read, non-important entries and encrypted attachments have separate retention controls. Unread and important entries are not removed by scheduled entry retention.
• WordPress personal-data export and erasure tools include exact sender-email matches.
• Plugin deletion retains data by default. Permanent removal must first be selected in settings and confirmed by typing DELETE.

Contact Form 7 dependency

Contact Form 7 is not bundled. If it is absent or inactive, Quarivo Form Shield does not cause a fatal error. The existing inbox remains available and a clear administrator notice explains that new capture is paused.