sendrules
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Product
  • Overview
    How sendrules fits between your app and every provider.
  • SMTP Proxy
    One endpoint. Every provider you already trust.
  • Grid & Rules
    Six routing strategies. Coverage warnings. Failover.
  • Quality Gate
    Verify recipients before the send, not after the bounce.
  • ISP Routing
    Route by the recipient's live MX record — not domain strings.
  • Ramp-up
    Auto-advancing cap with bounce/complaint safety gates.
  • Limits & Queue
    Four-tier caps. Queue, don't drop. Midnight-UTC release.
  • Webhooks
    Signed and verifiable. Retried on schedule. Replayable.
  • Activity
    Seven filtered inboxes. Sparklines. Share links.
  • Inbound
    Receive + classify replies, bounces, and OOOs.
  • Autoresponder Parser
    Harvest contacts from OOO replies into lists — webhook or CSV.
  • REST API
    Every UI action has an endpoint. Scoped, rotatable keys.
  • Teams and roles
    Fine-grained RBAC across 30 resource types + audit trail.
Deliverability
  • Overview
    The suite most vendors sell separately.
  • DMARC Monitoring
    DMARC aggregate reports ingested with per-source breakdowns.
  • Auth Check
    SPF / DKIM / DMARC, graded A through F.
  • Postmaster Tools
    Google Postmaster data in per-domain views.
  • Blocklists
    Continuous blocklist + seed-list inbox placement.
  • Free Tools
    Email validation, spam check, DMARC generator — free on every plan.
How it Works
Industries
  • All industries
    Every segment sendrules fits — and why.
  • B2B SaaS
    Transactional at scale. Failover across ESPs.
  • E-commerce & Retail
    One rule per ISP — Gmail buyers routed differently to Yahoo.
  • Marketing Agencies
    Per-client rules on your clients' own provider accounts.
  • Sales Development
    Verify every address. Parse every autoresponder for referrals.
  • Recruitment & Staffing
    OOO replies are full of decision-maker names — capture them.
  • Real Estate & Lead Gen
    Inquiry email hygiene + reply-source enrichment.
  • Financial Services
    DMARC compliance, audit log, signed webhooks.
  • Healthcare & Life Sciences
    Reliable patient comms with a full audit trail.
  • EdTech & Education
    Enrollment-week bursts absorbed by queue-don't-drop.
  • Nonprofit & Fundraising
    Donor-appeal deliverability without a deliverability team.
  • Publishers & Media
    Newsletter deliverability + list hygiene at every send.
  • Government & Public Sector
    IP allow-list at AUTH, DMARC-first, tenant isolation.
PricingProduct Demo
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Every autoresponder is a contact list. We parse them for you.

Ten to twenty percent of campaign replies are autoresponders — most carry the exact contact info you were trying to reach. sendrules extracts them into named lists you can trigger a webhook from or download as CSV.

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Sound familiar?

Your best campaign lead is buried in a bounce folder.

The out-of-office reply says the contact is on leave until the 14th, hands you the assistant’s address, the alternate contact’s address, and a mobile number. Your ESP tags the message as a bounce and drops it in a reply inbox that nobody has opened in a month. The lead ages out. The campaign closes. Next quarter you pay to source the same contact again.

sendrules classifies every reply, runs your parser rules against the out-of-office ones, and drops the extracted contacts into a named list — ready for your CRM to pick up before the campaign is over.

Autoresponder harvest

Every OOO reply is a contact. Most senders throw them away.

Ten to twenty percent of campaign replies are autoresponders — and most of them carry the exact contact info you were trying to reach: “I’m on leave until Monday, please contact [email protected] for procurement questions.” sendrules parses every one, harvests every address, captures every named field, and drops the result into a list you can trigger a webhook from or download as CSV.

  • Harvest emails
    Every address inside the body is extracted — new colleagues, forwards, referrals, procurement contacts.
  • Named field capture
    Regex rules pull structured data — a name after 'Please contact', a phone number, an alternate ID.
  • Ignore list
    Skip your own domain, common noise, and addresses you already have. Nothing duplicated, nothing polluted.
  • Webhook or CSV
    Push new contacts into your CRM in real time, or download the list on demand.
See the parser in the productSee the pricing →
Inbound reply · 08:14 UTCAutoresponder · OOO
From: [email protected]
Subject: Automatic reply: Q4 vendor request

Thanks for your note — I’m on parental leave until 15 January 2026. For procurement, please reach [email protected]. Legal + contracts: [email protected] (direct: +44 20 7946 0123).

Parser: rule "acme-tier1" · list "acme-warm" · 3 new contacts
Contact list · acme-warm
  • [email protected]procurement
  • [email protected]legal
  • [email protected]on leave
1,247 totalExport CSV
Webhook · POST200 OK
{
  "event": "parser.contact",
  "list": "acme-warm",
  "email": "[email protected]",
  "fields": {
    "role": "procurement",
    "return_date": "2026-01-15"
  },
  "source_msg": "01f9...abcd",
  "ts": "2026-11-04T08:14:32Z"
}
Under the hood

Rule-based, not a black-box classifier.

A parser is a named rule attached to an inbox or to the whole tenant. You pick what to extract — every email address in the body, or specific captures under field names you choose (return date, alternate contact, phone). Ignore rules skip your own domain, common no-reply patterns, and known-noise addresses. Contacts dedupe per parser, land in a named list, and can leave via signed webhook or CSV.

Wired to the inbound flow

Runs on every classified out-of-office — nothing extra to invoke.

The parser runs automatically when the inbound classifier tags a message as out-of-office. No separate ingest, no manual review queue. Extracted contacts show up in your list within seconds, and any webhook you have registered gets a signed event per new contact.

Turn today’s out-of-office replies into tomorrow’s pipeline.

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sendrules

One SMTP endpoint across 15 providers. Verify recipients before the send, route by real MX, and monitor DMARC in the same product.

Sign inStart free

Product

  • SMTP Proxy
  • Grid & Rules
  • Quality Gate
  • ISP Routing
  • Ramp-up
  • Limits & Queue
  • Webhooks
  • Activity
  • Inbound
  • Autoresponder Parser
  • REST API
  • Teams and roles
  • Integrations

Deliverability

  • DMARC Monitoring
  • Auth Check
  • Postmaster Tools
  • Blocklists
  • Free Tools
  • Providers

Solutions

  • How it Works
  • Industries
  • Customers
  • Pricing
  • Contact

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